Favorite Dennis "Ohhhhh" joke

[bboswell]

I know after you hear just a few of them, they get somewhat predictable, but they're still fun!
I'm talking about the jokes where... well, I think an example would be easier than explaining them...

Dennis tells Jack that he hid Easter eggs in the washing machine and they splattered all over his parents clothes. Then Jack says:
Jack: Dennis, Easter Eggs shouldn't splatter, how long did you boil them?
Dennis: Ohhhhhh BOIL them!!!

That's what I'm calling a "Dennis 'Ohhhh' joke."
What is your favorite, funniest, most memorable, or one that you did NOT see coming??

[Brad from Georgia]

It's been a long while since I heard this one, so my memory may be off. Jack and Mary ask Dennis if he plans to go swimming.

Dennis: No. Last time when I jumped off the diving board, everyone laughed at me.

Jack: Well, I'm sure they weren't being cruel. It may have been something silly. You may have had a hole in your swimming trunks.

Dennis: Ohhhhhhhh. Swimming trunks!