Edible...Yes. But I Won't be Cooking Him (Her?)

Here at the office, I have a small fish tank on my desk. Inside this tank is some fish gravel, some fake plastic plants and an electric blue crayfish I have had for about a year.
Crayfish taste good, but I won't allow this guy to get cooked (much to the dismay of a few co-workers)
The other day, he started tearing up his tank. He was climbing the plants as high as he could, and for a while I thought he was trying to escape.
I managed to get some pictures of his aquatic acrobatic routine.
So here is my blue crayfish...acting strange.