But, he quips about the grenade, "to be honest, I don't know why I didn't get that thing and punt it right back to them."
"Going from toting a machine gun in Afghanistan ... to using a bed pan and I can't even put my own socks on," he said. "It took eight months or so to be able to put my socks on, on my own, but it was a long eight months. But I guess that was the hardest part. Letting other people help me."