I think taming a dragon would qualify as doing something better than being embarrassing. [But what did he know? It seemed like issues with one's parents were common no matter what world someone was from.]

But I get it. Being stuck like this-- [He gestures to the wheelchair.] --I had to figure out how to be a warrior and gain glory on the battlefield on my own terms. It hasn't been easy, but I've proved myself. Turns out using my mind instead of just stabbing people produces better results. [It sounds like Hiccup would understand about that. Vikings, no matter where they were from, respected physical prowess above all else. Anyone who relied on brains over brawn was considered to be a lesser sort.]