My colleagues in the office have been admonishing me to get a maid, and I can understand why. By the time I get round to cleaning on the weekend, my place has picked up more dust than the Event Horizon; and there are a number of mini-beasts relieving themselves in my apartment.
My policy is to leave creatures alone if they aren’t evil/Filthy McNasty/bothering me. Animalia non grata are few: mice, rats, houseflies, drosophila, mosquitoes, Japanese hornets, and giant centipedes (the latter two were shooed out of the house or thrown out with long chopsticks respectively).
The other day, a wasp was ambulating on my living room curtain when lifted its abdomen, and fired a rod of excreta onto the floor. Later a gecko, regarding me with a wary eye, lifted up its tail and released a sticky black globule, which landed with a nasty little soft thud on the cistern of my toilet. It was in the right area I suppose; cheeky son of a bachelor.