MOUSE WARS

I'd love to be able to tell you all that I placed 4 mouse traps and caught (at least) 4 mice, but unfortunately that is not the case. I did place 4 mouse traps delicately laced with a heaping glob of peanut butter, and I strategically placed them throughout the house in places where I had seen poop. You would think I would have caught something but not only did I not catch anything the little stink licked the peanut butter clean and got away scott free! Is it OK to try to kill a sneaky little mighty mouse?