A slight deviation but I knew a bloke who came home to his temporary accomodation on a sugar plantation after a night at the local. He saw a huntsman on the wall above the bed and despatched it with a 410!!!
As for snakes around the home, I've heard that if you spread lime around your perimeter it won't stop them coming in but it will get into them and dehidrate them killing them. Not sure how long it takes to kill.
Anyone have any knowlege of this one??

