I totally agree. Your largest snakes might eventually fit the bill, but I still think captive snakes have a pretty low risk of carrying it anyway...where would they pick it up?
(-tell her you'll brush their teeth & get them to use mouthwash, LOL) You're correct, everything else you mentioned above is a bigger risk. Even dental work carries a
small risk, they say??? So really, this is a relevant vaccination for nearly everyone, IMO. Anyone can step on a dirty nail in the yard or at the beach.