Back in 2E days, we endured a “Play Yourself” campaign. The basic idea was that the PCs were the gamers that sat at the table, and we had gotten zapped into the Forgotten Realms for some unknown reason. So, it was a lot of fun in that we were allowed to meta-game to a certain extent and we could make jokes that were normally out of game type stuff (when one skinny guy was described as wearing a black leather outfit, we got, “oh my god, it’s the Gimp!” (From Pulp Fiction) and one PC inspired some downtrodden Underdark dwellers with a speech from ‘Braveheart.’
Anyhow, one guy (the main DM) insisted there was a ruling that allowed a mage to use two wands. Of course, this guy’s PC in the Play Yourself campaign was a mage that wielded two wands – zapping the battlefield with his twin lightning bolts every round. Of course, he also gave everybody the stats of their PCs and insisted on giving himself a 17 in intelligence and charisma (we had to talk him down from 18 in INT, with the argument that Raistlin was only a 17 INT…) In the meantime, this guy had to go to a calculator to add numbers that went over single digits, and nobody would game with this guy if his best friend (a DM on Friday nights) didn’t insist on some other guys coming over on Saturday nights.