my first attempt:
I put the case in any corner, put the bait (a slice of cheese) and it stressed the case on.
the next morning was the snapped device, the bait to look away and not a rat.
my second attempt:
It happened the same under the same conditions ...
something I was doing wrong ...
the third and last attempt:
This time I put the cheese festival in the trough / bait hole (in the picture nice to see) ... well, the next morning the Lord had a lodger more.
whether the animal had to suffer need, I sadly can not say ...
My conclusion: the trap is functioning properly, and is very efficient for larger rodents.
5 stars from me ...