
Generally speaking I don't go round killing things. I do, however, make exceptions and will trap mice when they try and infest my property which they did with very great success in my garden shed in Lewis when I was here last year. They had a real ball. All the wellington boots became nestboxes. The grass seed all disappeared into mice stomachs or into wellington boot stores - a whole box! The mess was indescribable. Well that's probably putting it a bit strongly but my powers of descriptive writing are not good. Probably the most adventurous phrase I've ever used was in my GCE when I managed to get in "stentorian reverberations". But I can think of no way of relating that to mice.
Anyway to get back to not killing things. One of my neighbours (right outside the kitchen window in fact) is a Paper Wasp (identified as such by CJ, of course). Now one of the creatures that I will kill without any compunction is a wasp. A wasp building a nest outside my kitchen window is sure to die. Unless he/she is a Paper Wasp. CJ pointed out that they are not social and don't sting. So he/she continues to live in front of my window, thanks to CJ.