Snail
A snail hibernates for many days, and they might sit in the same space for a while. If the snail has not moved in two days and is smelling funny, then there is a possibility your little friend has moved to heaven.
Snails aren’t meant to eat popcorns or anything that contains oils, salt, etc. Processed foods are a big NO for snail diet. It won’t provide the nutritional value that is needed for a snail to survive and thrive.