Shark tank cleaner

Window cleaning is probably not the most fun of professions. You are cleaning the shark tank while you are being watched by sharks and many other deadly animals. Some one has to do it they can not just never clean it because then it will be really dirty. This job is in many countries around the world so anyone can be a shark tank cleaner. I would like to be one but at the same time i wouldn't because i would be a little scared of the sharks just swimming around me.