I was talking with a woman here in Woodstock last weekend who worked for a plumber. Somehow the topic of snakes in the commode came up
in the conversation. One customer had a problem with this and the snakes were getting in through a sewer clean-out pipe in the yard which was missing it's cap. I don't know if you have these in TV but I would think so. It's probably a good idea to locate these and know where they are and one could check the security of the cap at the same time.
While snakes in the house are never acceptable, keep in mind that nonvenemous snakes in the yard are your friend. They control populations of other critters that you really don't want around either. (Think roof rats in palm trees.) Learn to recognize the difference between good and bad and you'll be more comfortable. Just my $.02 for the day.