Oh I definitely do.... but as a result from poor collection, shipping, storage, post collection feeding and poor acclimation... all before they get to us. Those that take a hit before they get to me, die fast. The ones that make it the first month pretty much live for a very long time. You know I'm simply crazy for snails.
We have a bumble bee snail that has been with us 11 years. So no, I guess my snails don't just twindle away.