Don't forget to plug the power cord in before you start scrubbing the inside of the monitor off
Seriously though, I would not take the cover off of it and try to scrub it in the tub, because some of the capacitors can stay charged for a very long time, and will let off a very nasty shock if you touch them.
Find you a pellet gun, if in town or a rifle or shotgun if you can take it outside of town and target shoot.