I have to admit...I don't see why people own crayfish..
Part of Earth Camp(two week summer camp I did.) we had to help eradicate Crayfish out of AZ...and geezus!!! 1) those things HURT when you get pinch! And they DON'T LET GO. 2) sexing and sizing those squirmy little things are hard... 3) and don't even get me started on that tail! It can stab you! *huffs*