Here is a collection of all of Sheldon's knocking scenes from The Big Bang Theory Season 2. Featuring all of his knocks on Penny's Door and Leonard and also Penny impersonating Sheldon.
Penny and Sheldon's chemistry is absolutely awesome. "Thanks for the update." "Does that feel like my hand?" There are so many awesome moments between the two.
0:05 I know people say Sheldon is complete ridiculous for all the crap he puts people through and there are limits, but most of the original characters have done this. Penny mooches off of Leonard and Sheldon with food and Wi-Fi all because Leonard is a simp for her. Howard constantly puts Raj down and is a perv until he meets Bernadette, and even then, he treats her like a servant for a while. Raj lives off his parents like crazy and is a douche when he was drunk in order to speak to Women. All I’m saying is take it easy on Sheldon
Imagine species A trying to communicate with species B. That's Sheldon and Penny. Mostly just Penny. But she does such a good job, she doesn't need a college education. She's already performing the Sheldonectomy. Of course, he has already performed a remote Pennyoscope. It's called googling it up. Turns out you really CAN tip a cow. But you can't tell Leonard, in case he doesn't already know.
We all have that one friend that says something seemingly unrelatable to anything visually present at the time and sometimes if lucky they'll explain clearly what was meant. It's me, I'm that friend.
Notice Sheldon says "you HAVE to take me to work" not "will, you take me to work?" Like Penny owes him something. Why doesn't he take a bus or call uber?
I think there was a scene in which Leonard being devastated by penny's words, hit his head on the door with the back of his head, Sheldon thinking it was a door knock answers and Leonard falls backwards
Did you ever considered making friends by being I don't know pleasant That Is a thought provoking hypothesis may I suggest it as the topic for your essay