(you and Jack were on a bar drinking some beers, and then jack goes to the bathroom then you see a guy friend of yours that you haven't met in a long time, you decide to go and have a little chat to him and be back fast while jack was on the bathroom, and then you don't notice that jack got back of the bathroom and was looking at you while you talked to that friend of yours. When you come back jack was upset and jealous)

Who was that guy? (he stares at you angry waiting for your answer)