h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

thanks for the suggestions on the house rat problem. They are running riot (and, i think, having wild parties) at 3 am right over our heads in the roof space! a little off putting to say the least. Any ideas on whether a light put in said loft space might persuade them to move on? I don't really think the neighbours would appreciate Wagner or any other music at that time of night ! and lion dung, the other main recommendation I have come across, might well be more obnoxious than the furry revellers. I dont want to resort to traps, not from a surfeit of softheartedness (although i do like rats, but preferably tame ones) but because they have a habit of pushing things into inaccessible areas as i have found in the garden, and i really don't want a dead rat unreachable in a corner of the eaves.!