I've got nothing to contradict it, and I was 50/50 on it anyway, so we'll run with that ruling and Caden will burn a healing surge.Since the attack is coming from a trap and not an enemy per-se, I'm going to say that the trap is not considered an enemy. You are certainly welcome to use the healing surge though.
Just wanted you to see where I stood based on the PHB. Lemme know if you have some other part that contradicts what I say and I'll be happy to change it![]()
Also, no need for short rest now.