The Clean Room Infiltration - S8-E11
Stupidity: On the way home from the university after wiping their names from the sign in sheet, Leonard, Howard, and Raj are all singing Jingle Bells. Leonard is driving and has his eyes closed all the way through singing the song, this makes no sense at all giving he should be looking where he's driving.
The Clean Room Infiltration - S8-E11
Stupidity: At the end of the episode, Leonard, Raj, and Howard are driving home after wiping their names from the sign-in sheet at the university. They are singing Jingle Bells in the car. Leonard is the one driving yet has his eyes closed all the way through the scene while singing; he should obviously have them open and looking out at the road.





Chosen answer: It does. The variable cleanliness of the cab and the habit of taxi drivers to engage customers in small talk would be too much for Sheldon to handle, and not an option for him.
Captain Defenestrator