My character loots when i just use my movement keys

[Annona]

Must I have one of WASD keys bound for two functions, one of them to loot a mob? I constantly find myself running past dead mobs and looting them all the time unintentionally when trying to engage another or simply running past. It isn't that horrible but at this point it is just annoying and is going to get me killed one day. Am I the only one with this issue?