We still do a nominal amount of legacy hosting (dates back to the 90's so why give up the money?) and had a long time customer switch because his brother offered to do it for free. He also switched the domain name as well which ended up in the hands (ownership that is) of the hosting company. So he doesn't know it but he isn't the owner of the domain any more. I've actually seen that happen many times. Someone transfer a domain and all of the sudden the whois shows the name of the tech guy, or even (this case) the hosting company is the actual owner. Small business guy site owner is clueless as to what is going on. It's hard to sell people on things that might happen to them because there are multiple things that could happen. And if you take the time to do so, that is to fully educate them, they know what to look out for and you still lose the business.