While I was in Garlaige Citadel, Cuno spent 3 hours training bats, beetles, and anything else he could muster to the zone so that all 4-7 parties that were there had to stay outside the zone. If anybody walked in there'd be about 15 monsters waiting for them so they'd either die or come right back out, with the monsters back up next to the zone.
If it was long enough for the monsters to start heading back, Cuno would go back in and train them all back up again.
3 hours man. I gave up leveling that night and just logged off. I think our party killed some DC's in Champaign until one person leveled and then part of them went to go Tiger farming and the rest of us just logged off.