Jerry Seinfeld Has Convinced His Children That Their Cats Laugh Like Humans 3.67K Junior Mendez 03/04/11 02:30PM Filed to: The Tonight Show The Tonight Show jerry seinfeld TV Video On last night's Tonight Show, Jerry Seinfeld shares how he recently got two cats despite not being partial to felines. Furthermore, he's convinced his kids that the kittens actually laugh once in a while.[There was a video here]