My problem was/is the occasional rat that gets into the roofspace..running around at midnight with its little hobnail boots on...A packet of ratsak in the manhole and usually find them dead in the backyard a few days later..but twice so-far they have died in the roofspace...and guess who's job it is to crawl int to remove the stinking body.......A lot of gagging on my part, maggots as big as the rat..sheesch