Wasn't that some direct to video Dolph Lundgren sci-fi action movie?

Dude, you need to go back home. You have too-long-time-expat-itis.

This, baited with peanut butter, is irresistible death. Place one at known rat entrances or run ways. I could catch dumb rats within an hour of placing the trap. Some smart rats took a day or two to give in to the temptation. Also, eliminate any other sources of food. A fat rat is an unmotivated rat. There is no blood, nobody dying in your walls.