last comment i'm going to make about this. I understand your point of view, but then again, you are the service provider, we are the customers. we spend money expecting at least a safe service, so at the end of the day, someone may accuse you wrongly, but it's your responsibility to show that the person is lying, and not his responsibility. it's good that you have elected to do the analysis at least if not for anything, consider the fact that people don't pay money just to fall ill. Ok, i know you make sacrifices to make us happy, but the least you can do is to be credible enough to prove that someone is wrongly accusing you of something. The color of your bathroom tiles does not guarantee the safety of a future punter who is looking for at least a safe service. Anyways, you have decided to get analysis done and I think that is a good first major step.