I've been looking after my friend Jack's sea creatures. Sushi the gold fish and a pair of hermit crabs, Hermi and Crab Stu.
The fish has pretty sedate but the crabs are a handful.
At first Hermi would just bury himself in the sand, Stu would be the only visible crab and he was odd. When we looked at him he would practically come right out of his shell. After a few days of living with us Crab Stu moved out of his shell and was cruising the tank, not sure if he didn't like his other shell options or if he just wanted to end it all... he eventually stopped moving and MOm had to remove him.
With Crab Stu gone Hermi came to the surface and was all over the tank even climbing up the walls, that lasted a day and we haven't seen him since...did he escape?