Even though it probably wasn't intentional, lately I've been thinking, and I think I've come to the conclusion that Herman Munster may have been on the autism spectrum. He quite often acts like a child and seems to have difficulty acting like an adult at times, he's not entirely bright and is easily fooled, it's not uncommon for him to freak out or lose his cool over something that might otherwise be insignificant to anyone else, and he also has that little tic that's quite similar to "flapping" that a lot of autistic children seem to do (a la Julia).