This is Wilbur. We had a little war a week or two ago, and I tried to erradicate him. Well, really, just persuade him to make his home elsewhere. Then I noticed he was missing a limb, and of course felt sorry for him. So as long as he follows the rules, he can stay. No stinging. No breeding. No dive bombing my head when I'm out there reading. No inviting friends over. That's pretty much it.