I think you have to be sort of twisted to think anything related to HG is funny, but if it's possible, I've got a great one. During my first pregnancy, before discovering zofran, I was staying at my grandma's so she could help take care of me (I had lost 25 pounds in 2 weeks and was working on recovering). I was on phenegran so I was pretty out of it but it didn't help the vomiting at all. Well, during one puking session, I accidentally bumped the toilet seat which I had propped up. It came crashing down on my nose. Since it was a solid oak toilet seat, it gashed me pretty hard and I started gushing blood. I went back to my room where my husband was laughing and crying all at once. I still have the scar! I thought it was pretty funny even at the time, or at least ironic--it helped me remember that no matter how bad things are, they can always get worse!
HG survivor and crazy enough to do it again (and again).