rodent proofing a garage

Weve got a rat snake in the garage back home... had the same snake hiding out in there for three years now, no rats or squirrels. plus makes kind of a cool conversation starter when friends come over and see a four foot snake laying in the rafters warming himself up.

I'm sorry but if I saw a snake in my shop, I wouldn't be working on the car, and he wouldn't be eatin anymore mice either.:D