When we did our recent bathroom remodel, we ran into a small hazard.  After installing the new toilet paper holder onto the side of the cabinet, I noticed that the screws came through the cabinet.  So when you would open the cabinet to get a towel out, you could potentially cut your hand on the screw.  This was not the case with our previous toilet paper holder.  We needed to come up with a solution to this so that we didn't end up with scarred hands!