Janitor's closet hose + dirty paintbrushes = fun?

the q today is in the title: Does the janitor's closet hose + dirty paintbrushes = fun? YES!!! kay so 2 weeks ago in DI my friend and i were painting something and we were at school. when we finished we had to wash off the paintbrushes. so we went to the janitor's closet where there is a sink and the faucet thingy is a hose. so after we washed everything off we got a lot of water all over everything. then i had a brilliant idea: "I wonder what would happen if you turned off the water and put a paintbrush in the hose and turned it on again?" and of course, being us, we had to try it out. so we put a paintbrush in the hose so it was still sticking out and turned the water up to maximum. the brush shot out and water sprayed ABSOLUTELY EVERYWHERE!!! it was really fun... try it sometime!