Troubled with little meeces

We have had a mouse problem again recently.  Caught 2 in the wine closet a month or so ago.  Rich saw one running across the kitchen floor a few days ago.  I saw one in the bathroom. Little tiny thing.  So the other night Rich set 3 mouse traps.  He put one in the wine closet, one outside the bathroom door, and one in the kitchen behind the garbage.  He uses peanut butter in the traps.  Next morning there was one mouse in the wine closet trap, and the other 2 traps had been licked clean of the peanut butter without setting them off.  So yesterday morning he re-set them with fresh peanut butter.  

Yesterday afternoon we left home about 3:00 to do a little shopping and then go out to dinner for Dan's birthday.  When we got home, about 9:30 pm, we checked the traps.  Only problem was, the mouse trap that had been behind the garbage was completely missing.  Sometimes, you know, the mouse drags them a little ways after being caught, so we looked all around.  Couldn't find.  Then, mystery unsolved, we went into the office/tv room and turned on the light.  This is what we saw:

Dear Miss Poo Poo the cat now not only brings the mice inside to play with and then abandons them, doesn't catch them again herself, and then raids the mousetrap!  Or maybe she was trying to rescue it again.