Like most animals, slugs and snails love their food. Sometimes, they'll even stand guard over it, even when they're not hungry. Never mind the fact that there's more than enough to go around:
They even make funny little faces and do weird things with their eye stalks when they encounter something they find extra tasty:
Much of the time, they can be found sleeping around or underneath the food dish. Yesterday, I even noticed that one slug or snail (can't tell the difference from eggs alone) was even thoughtful enough to lay his eggs on the underside of the dish, where they would have had immediate access to food upon hatching. However, I had to move them in order to clean and refill the dish. Silly slimers!