A guy walks in a library and asks a librarian "Do you have any books on Pavlov's dogs and Schrödinger's cat?"

The librarian replies, "It rings a bell, but I'm not sure if it's here or not."<br><br><br><br>Edit: Holy smokes! Almost a million views and 70K upvotes!!<br><br>Edit2: Some guy pointed out that this is a repost. So everything here is a repost, no big deal.<br><br>Edit3: Here is a link to the darn origin of the joke. It's a 2011 issue of British satirical magazine Private Eye. I did not know about it when I posted this.<br><br>Edit4: I did not expect this many upvotes. Almost 2 million. Almost 100 thousand upvoted. I just post some dumb shit on reddit for fun. I did not expect this much. Fucks sake.<br><br>Edit5: Almost 2.5 million. 130K upvotes. Again, thank you. I appreciate this. I did not expect this much people would like this little joke.