Twice in the past couple of weeks, I've found big (live!!!) spiders in the litter box. Do the nasty things like the litter, or do they fall in and just can't climb out? My litter box is a tall "tub" because kitty sprays everywhere and this is the only thing that can contain him. There are no spiders in my sinks or bathtubs, though, which makes me think this is a litter box thing. But I've never heard of it before. I hate spiders. Has this happened to anyone else??