I have a client that has been paying in cash/check but went rogue... I host his website and have been doing local marketing for him but now he is out of reach. It was my mistake to not have him sign a contract; however I don't want to continue hosting or working for someone that's not paying. I was thinking of taking the site down with a "Failure to Pay" notice. What do you think? This is not someone that I want to continue working with, especially due to the fact that he doesn't return my calls. I'm fine with getting what he owes me and not dealing with him again.