inspired by the final table of teh WSOP $1500 NL holdem event
 

inspired by that guy's one card all in

UTG looks at his first card and declares he's all in before getting his second card.

what range of hands do you call with UTG+1, what hands do you call with if you are in the BB and it's folded to you. how does your answer change if he either a) has you covered, of b) has about half your stack