It wasn't a bad thing if it meant she'd get over it, and he kinda wanted to be her friend, so if there was any possibility of that happening, it had to not be A Thing.

Hiccup quickly covered his leg up.

"I don't mind--I don't even really remember it. Car accident, when I was seven. I took a good knock to the head, too, so I wound up with retrogade amnesia. Don't remember the accident, don't remember anything before the accident--don't even remember a time I ever had two normal legs. I woke up in the hospital and...just...started from there."