I once had mice get into the backside of a bag of grass seed.  I never saw it and didn't know anything was going on in my garage until I was infested!  I remember sitting in the garage quietly noodling on a small engine problem when I heard something.  Then out of the corner of my eye I saw movement.  So I stayed still and watched for a while to figure out where they were going and what they were up to.  Then I grabbed my sons bb gun and sat there and shot mouse after mouse for over an hour!  I had a blast and killed quite a few of them.  Just a thought for you.  Got a young son who might like "the hunt"?  That's is what it reminded me of.  I was stalking and quitely moving around for better shots.
	
		
			
		
		
	
				
			
	
	
	
	
	
	
	