Babs,
...Was there laughter to be found with "Dumb And Dumber"? I spent 4 dollars to rent it, because I like Jim Carrey, sit through ten minutes of it, congragulated them on their apt choice of a title, then turned the tape off, letting my money got to waste. (And I HATE to waste money!
)
...Anyhoo, I believe my thinking is simular to yours. I think laughter, like crying, is a coping mechinism, available to homo sapiens. I would assume it is to offset our highly evolved ability to think, which can run you crazy. (
for lack of a more scientific term.
)