I was surprised to see a plumber earning a full 5 stars, but after calling Gabe I now understand. He came out and inspected a possible leak going from my upstairs to downstairs bathroom. The leak is only mild and happens only occasionally. He told me simply to caulk up some leaks in my shower upstairs and the problem should be fixed. When I halfheartedly offered him some money, he refused to accept it, and simply gave me his card asking to call him in case i have any future problems.