Invisible Fence — Tortoise Style
We got the tortoise in summer and decided to let it wander outside in our well-fenced backyard during the day. The backyard consists of tall wild grass, which is only mowed once a summer — so we promptly lost the tortoise. After a long search, we found it again. The next day we tried to be a little smarter — we stuck some pink duct tape to its shell so we could spot it easier. That helped, but not enough.