ok i have no heaters in my tank but i have a few suction cups in the sand freely so my pink con ( she has no mate as i have no male cons in the tank ) is cleaning this suction cut and it turns over on her and as i was watching the suction cup part is in the sand and the female BITS IT AND TTURNS IT OVER and trys to clean it again but now shes like * oh screw you to! ) and left to clean some other thing lol 
this is why i LOVE cons!
this is why i LOVE cons!