My husband has Alzheimer's and has lately started peeing on the floor on both sides of the toilet. I'm afraid the urine will seep into the floor under and around the toilet. Also, On one side is a wooden vanity, on the other side is a wall and baseboard, and on the other side is the bathtub. The only thing I can think of to protect these surfaces is caulk to keep the urine out. Does anyone have any suggestions about a particular type of caulk or any tips about how to do it? Thanks so much. I really need some help!