Question: How can I make a mouse trap that doesn't harm the mouse it catches.
Option 0: Attach a screen mechanism to the outside of a large coffee can.  When the mouse goes into the can the screen will cover the exit so the mouse will be stuck inside the can.
Option 1: Use food to lure the mouse then place a mechanism with a net attatched to it.  When the mouse grabs the food the net will cover the mouse trapping it under the net.
Answer: 0