When I was at Exodus working in Accounts Receivable some of the folks came to work very early.
Fact 1 : The water in the toilets is blue from when the janitor’s cleaned it the night before.
Fact 2 : When you come in that early, you are usually the first one to use the toilet.
Result : The first one to use the toilet sees blue water in the toilet -> Blue Bowl Club.
Huh. Our master bath does this, but our guest path (frequented by my son) is always green. Odd.