Please don't laugh at the funny man in the white dress. It makes him very unhappy if he is told that he is a figure of fun.
Laughing at him is "seriously offensive" according to the Daily Mail. Making jokes about him is "ill-judged, naive and disrespectful" as reported in the Guardian. In fact the BBC reports it is actually "despicable", which is co-incidentally Daffy Duck's ultimate retort. Are you starting to get a feel for how serious this is?