[DexterII]

Worst case scenario, they could be considered a nuisance, but I'm actually content to have them around. They aren't intimidating in any way, don't bite, don't buzz you, much anyway, and don't leave any residue on the walls, as far as I have ever seen. As Mike said, harmless, so I leave them alone, other than shooing them away from the door when I go in an out. If all bugs were as congenial, I imagine that fewer of them would get squished.