MISTAKE: YOU USE TOO MUCH BAIT
SOLUTION: USE ONLY A TINY AMOUNT
When you fill up mouse traps with a lot of bait, the vermin can steal some of it without triggering the trap. A small amount of mouse trap bait will suffice to attract mice, but not so much that they can eat it without activating the trap. If that situation happens, you will have to wait until the mice come over again and get caught.