MINOR URINAL MYSTERY

The urinal I typically use contained, at 11:30am today, a blue foamy liquid that I can only assume was soap, maybe the soap used by the janitorial staff to clean it. But for it to still be there at 11:30am? Was nobody else drinking liquids today? I realize that there's a whole other urinal and two toilets just in that one bathroom, but it seemed kind of weird.

Unless ... unless there's something I don't know about that urinal.