"Painfully" bad jokes
I've been thinking lately about social reactions to bad jokes (especially puns). It seems pretty common to express mock pain/disgust at jokes that are deemed "weak" (i.e., contrived and unfunny) by the listeners. In my dialect of English, this is expressed with groans and interjections of the kind that are normally used for physical pain -- "Ow!" or "Ouch!" or "Ooh!" How do speakers of other languages react to bad jokes? How are different kinds of jokes evaluated as funny/unfunny? I know a lot of English speakers regard puns as especially stupid.