Probably a woodlouse in there. Stick a fork or metal skewer in there and wiggle it around a bit to coax him out/ impale him.
Edit: Do not do this^!!! It will result in your death. Obviously woodlice can only be coaxed out with a wooden implement such as a chopstick/cocktail stick.
Probably a woodlouse in there. Stick a fork or metal skewer in there and wiggle it around a bit to coax him out/ impale him.
Edit: Do not do this^!!! It will result in your death. Obviously woodlice can only be coaxed out with a wooden implement such as a chopstick/cocktail stick.