I'll set the scene.
Mrs OMG is constantly cleaning. The floors are mopped in our house more times than an operating room floor.
This means the boys are constantly told "Take your shoes off" the minute they walk in the door. They hardly ever do!
One day Stepson #2 had steppes on the floor before taking his shoes off. Leaving a wet patch. He started to wipe it with his sock.
Buddy, who was waiting patiantly outside then chirped up with.
"What are you worried about the floor for, you don't have OCD!"