Are You Lookin At Me?

This addon is a trivial enhancement for the game tooltip which, when you mouse over a player or NPC, shows you the name and level of their current target. I designed it just to know when someone is inspecting me without me having to target them back, though it has practical uses as well such as mousing over mobs during combat to ensure that they're on the tank and may be useful for similar purposes in PvP as well.