Heh. This has caught me twice. Once was before I even knew about it and the second after a particularly bad horde night and I wasn't thinking and quit. That one was actually very strange (it was in A20) because after logging in the next day and horde night starting up again, I realized everything that was looted after completing horde night was gone and so I had no ammo for the next round of horde night (about 2 hours). I managed to survive but I didn't kill much for 2 hours because I had to do melee and that meant a lot of running to avoid being surrounded. It was an interesting experience but not one I'd want to do again.