John drops down and asks, "What do you mean, dangerous? It's a pretty common exercise." He clears his throat then says, "I suppose sit-ups are next. Lay on the ground, clasp your hands behind your head, and keep your knees bent with your feet flat on the ground. I'll hold your feet and you just sit up. We'll do it as many times as you can." Ben chuckles, "Haven't you heard of the Joker? He's a basket case with no powers and he was still incredibly dangerous. Thank God Deadpool killed him."