[chrismahon]

The Fenn 6 will break your hand (the genuine ones not the copies) and the Fenn 4 will break your fingers. So you need to be very very very careful. The rats are invariably not killed outright in a Fenn 4 so ned despatching. I use an air pistol because the traps are anchored to the ground and drowning is difficult (and illegal). Rats can cause a lot of damage and spread disease. It is a legal requirement to have an effective control system if there is a known rat presence. Fortunately we haven't got them here yet but we were overwhelmed with them alongside the canal in the UK. The only time the numbers noticeably dropped was when the mink passed through the area.