NightHiker - I've got a paintball gun...good idea. Unlike a BB, shouldn't penetrate and lives a visable reminder to the owners. I like it.

IronRaven - I'm not sure a domesticated cat would recognize fox urine as a bad thing...but then I'm not an expert.

Chris - So how does the soap thing work? I had once heard that they don't like cedar or red pepper flakes...so I mulched the flower bed and sprinkled it with Red Pepper...no dice...they pranced right through.