Fixing my new kitchen backsplash (please help)
About 3 weeks ago I got a beautiful new blue Italian tile backsplash in the kitchen ($$$). On Saturday night, my 19 y/o son went out with his friends and got back quite late at night. He was *inebriated* when he got back home and thought it would be hilarious to smear wet cement mix all over the backsplash. He works at a construction company and came home with some of the mix the other day. Now, the cement is hardened all over the new backsplash and I have no idea what to do. I cannot afford to re-do the backsplash, so I want to try and save it. I already tried sanding it off, but the cement just broke the sander. If anyone has ANY ideas, I would love to hear them. This is breaking my heart (and my wallet).