Having been a GM/DM since the mid 1970's I love threads like this.  My personal favorite was a sit-in player who had, quite literally, a converted golf bag full of weapons that his previous GM had helped him create.  He would walk into a combat situation and say things like "this looks like it needs either a #27 or a sand wedge...either one'll kill 'em."

He didn't last long. The other players killed him in his sleep.