Sheldon Cooper’s 8 Quirkiest Habits in Big Bang Theory

Sheldon’s endearing quirks and habits from The Big Bang Theory are still remembered. These are a few of the most amusing and adorable. Season 5 of Young Sheldon premiered on May 19th, 2022, and it continues to enthrall fans worldwide. Fans will be able to see what made Sheldon from The Big Bang Theory the way he was and how his endearing idiosyncrasies developed far before the show’s history.

The primary characters in TBBT changed and matured throughout time, but Sheldon and his odd behaviors remained identical. Throughout the show, Sheldon’s obsessions remained a “good old” constant, although he grew as a person like every other character. Sheldon Cooper’s obsessions are always worth a second look, from everyday worries like germaphobia to more unusual hobbies like his love for trains. Let’s take a peek at Sheldon’s strange personality. Are they symptomatic of a disease or just oddities about him? It’s a choice between passion and obsession.

His Need For Different Beverages For Different Situations


Sheldon’s general apathy for social circumstances is well-known, yet he does have his warm and genuine moments. Offering different beverages for different occasions is an essential social ritual in Sheldon’s universe, and this quirky but helpful habit gives a humanistic touch to his persona. He brings Leonard tea in “The Middle-Earth Paradigm” after he embarrassed himself in front of Penny at the Halloween party, as per his custom of “serving tea to a sad buddy.” When Howard was angry after an altercation with Bernadette, he switched to delivering “hot cocoa to a sorrowful guest” in the episode “The Cohabitation Invitation.”

His Love Of Contracts & Agreements

Sheldon is known for his obsession with rules, and he has contracts and protocols in place for many circumstances. Sheldon enjoys preparing extensive and legally supported contracts for the individuals he interacts with, including his partner, Amy, whether it’s an emergency or a long-term commitment. Amy signs the 31-page “relationship agreement” in the episode “Flaming Spittoon Acquisition,” which she finds incredibly romantic. While this is an example of Sheldon going too far, it does demonstrate that drafting agreements is not only a preoccupation for Sheldon but also a love language.

His Love Of Trains

Sheldon Cooper may be a Nobel Prize-winning physicist who enjoys acting like one. Still, when it comes to trains or anything remotely related to railroads, his childlike side emerges, regardless of the situation.
Sheldon Cooper is a trained person, whether he is passionately playing with a train model set (“The Pulled Groin Extrapolation”) or traveling in one and continually chattering about the mechanics to an unpleasant level (“The Locomotive Interruption”). The rumbling mechanics, conductor hats, and sophisticated, vintage interiors appeal to him.

His Germaphobia

As fans may agree, Sheldon’s fear of germs is one of Sheldon’s few universally understandable eccentricities in The Big Bang Theory. He freaked out if somebody was barely fatigued or unwell because he was extremely conscientious about cleanliness. He also avoids touching anything or anyone he doesn’t recognize.
Sheldon sanitizes his hands with baby wipes before dinner in “The Griffin Equivalency” because the university replaced paper towels with hot air blowers, “incubators of disease and pestilence,” according to Sheldon.

His Love Of The “Soft Kitty” Song

Sheldon may be an overly-rational scientist, but the pleasant “Soft Kitty” melody soothes him when he’s sick or angry. For a change, viewers get to see Sheldon in his vulnerable state as his preoccupation becomes a task for literally everyone else. Penny performing the song to Sheldon in “The Pancake Batter Anomaly,” who is sick with the flu, is humorous and charming for viewers. For anyone who has a close relationship with Sheldon, performing “Soft Kitty” for him is a beautiful moment.

His Knocking On The Door

When fans of TBBT consider Sheldon Cooper’s essential features, his fixation with knocking on doors is undoubtedly at the top of the list. Sheldon is notorious for knocking three times on doors, each time announcing the person’s name he expects to see. Sheldon explains his need to knock on doors at least three times to Penny in “The Hot Tub Contamination,” the fifth episode of the tenth season. It turns out to be a darker reality than viewers might have guessed: he reveals that he caught his father with another woman in his parent’s bedroom, so he doesn’t feel safe without the knocks.

His Sitting Spot

“That’s my spot” is one of Sheldon Cooper’s many catchphrases from the program. Sheldon has a compulsive urge to sit in the same area on their couch. No matter what kind of social gathering is currently taking place in their flat.
Sheldon uses a scientific comparison to illustrate. What the sport means to him in “The Cushion Saturation”: “If my life were expressed as a function on a four-dimensional Cartesian coordinate system, that spot would be (0,0,0,0) at the time I first sat on it.”

His Need For Closure & His Resistance To Change

Sheldon despises unfinished projects and dislikes change. He keeps to his routines and wants everyone else to do the same. No matter how demanding and strange his habits can be. Sheldon loses it over a canceled TV show, Alphas, in “The Closure Alternative”.  Amy intervenes as a neuroscientist to work on “retraining neuro-pathways”. To help him let go of the things he obsesses about. Which is a fantastic example of his closure issues. When Amy does an excellent job with her little experiments. Sheldon eventually reveals that he doesn’t like change. And has a compulsive desire to “finish” things.

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