Hahaha, yeah, it's one of my favorite series! Gray is my favorite out of all of them. Lawl, I just start laughing whenever he strips! It's the oddest habit!
xD It's not odd for him though. Because remember, he always trained under Ur by taking off his clothes and running through the snow. Though, I lol'ed when Ur all of a sudden took off her clothes in front of Gray and the other guy (OTL I forgot his name lols).