Buy some tin cats, or at least try ONE.

They work great.

Steve

"Balderdash" wrote in message
ups.com...
I have several mouse traps around the house. I've noticed that a few
of them have snapped and there is nothing in them. Both that snapped
have been there for about 1 month. Will mouse traps let go by
themselves after a lenghty period of time if they don't catch
anything.

Thanks.