This bug could be used to wield any item, but since other non-wieldable items had no stats, there was no point to do it other than silly screenshots of a "wielded" gp pile or ball of string. The only reason the knife mattered is because it was actually a weapon with stats on release of the game, and the stats were never internally removed from the item when the wield option was taken off the item. To punish players, Jagex set up a script that did the following: