Gai could have said it when Lee asked him why he continued to walk around the village on his hands. (Gai lost Kakashi's challenge so he had to walk around the village on his hands. Lee wanted to know why his sensei continued when no one was watching him.)
But I really don't think that's what he said... I think it was more along the lines of him saying it was for his honor of being a ninja or something like that.
Originally posted by BladeChild
Fine Fine fine. The answer is....Neji. During the Sasuke Retrieval Arc whilst he was fighting captain spider.
All I said was that you guys could be right, but I don't think that it was Gai.
Okay, whose excuse is always: "I'm collecting data." ?