We were sitting in the garden when my Wife said look at the birds peanut feeder, there was this rat/mouse taking one peanut then climbing along our fence up to the gutter and disapearing into our neighbours side (semi detached chalet style)house. we watched this for some time with amusement as it was so quick in its return.However for some reason i got into the loft and saw lots of peanut shells, so placed a saucer with rat poison and water as thats what is required.Done this for a couple of weeks and saw no more evidence.Again for some reason i cannot remember i looked into the cold water tank and to my horror a dead rat/mouse.After draining i took the the thing out and it had no head !!. Of course the tank had to be disenfected.When i asked about the headless part it was suggested that as i had not topped up the saucer with water for a while it sourced our tank. As for the missing head well i will leave it to you.