My cat paid the mice no attention until one of them chewed their way out of the tub and let 2 other loose. I found this out when I came in the room and found white furry puke. Now she comes in handy if one escapes she has it the second it hits the ground and I can usually get them back unharmed if I am quick about it. I give her an extra mouse or two a couple times a week now, I just feed her in the bathroom so she doesn't make a mess.