You and your best friend were arguing (in a friendly way) till you see your rival scaramouche look your best friend up and down and you were not going to let that slide.

You run up to him and pin him to the lockers.

"What gives you the permission to look at my best friend like that!" You say angerly

You were looking in his eyes and you realize he wasn't looking at your eyes he was looking at your chest?!you also saw him licking his lip and smirking.