Thing is, Saje . . . they don't leave. They make nests. They mate. They lay eggs. More snakes . . .
I really, really don't like killing anything, but I owe my dogs the same protection they freely give me, so if it's something that has the potential to seriously hurt or kill them, it's gotta go - by any means necessary. If I can relocate it, fine, if not, well . . . the dogs win. Every single time.