Just how clean is your bathroom? Well, if it is not exactly the most hygienic spot in your home, then perhaps you might want to forewarn your guests with the $19.99 Hazmat Bath Mat. This is an exclusive invention over at ThinkGeek, where it will provide an adequate level of warning to whoever needs to relieve themselves. After all, the bathroom can be a scary place, and thanks to this Hazmat bath mat, it offers a non-slip backing to deliver an additional level of safety. Featuring black bound edges, it has its design woven into the fabric rather than printed on, and will also work as a mat in other indoor scenarios.