Nah, probably not.
I was taught it's really impolite to make fun or to speak ill of people with handicaps or obvious impairments, so I make sure I read the FUnnies in private so I can't be seen, because I can't help laughing at there folks.
My husband is a VietNam vet and he has PTS syndrome and he sees a counsellor but he is NOTHING like these people.