Well, so many possibilities. My natural inclination would be to spread some impermeable substance such as bitumen over the top. Failing that, the area of soiling can be completely removed with a utility knife and the underlay or board etc. sterilised by any appropriate means such as a blowlamp. Of course, for many situations the easiest option would be to simply lock the door of the affected room and abandon it.
never trust a man in a blue trench coat, never drive a car when you're dead
Apparently, if you ram a couple of Miracle Slurp-eez up your dog's star asset they have enough capacity to prevent any soiling for several weeks before they need a change.
never trust a man in a blue trench coat, never drive a car when you're dead
A Slurpee is a treat sold in 7-11 convenience stores, now with non-immigrant cashiers, made from shaved ice, sugar, artifical color and flavorings. Mostly sugar.
“Personalised face lollipops – the perfect gift for auto-cannibals”