Tom:
Your right about Doctors, amazing how things get confused with them. Slow paying, ouch, if we paid our bill to them like they do, we would be getting nasty phone calls.
Which ones to avoid ? The ones I try to avoid but with call backs, it tough are the ones that stand there and watch. I put enough pressure on myself without having to have the customer add to it, and the inevitable question , ......And you wont forget to do such and such right ?
As Tom says the lien forms handy, thats why I always use a letter of agreement, and then you can come back to him and say, this is what we agreed to, and what you are asking is a change, therefore, an extra.
But I have found from experience, to treat Customers with the utmost respect, even if they happen to be yelling, always proceed calmly and make your point, in other words," kill'em with kindness " it works everytime, and some of the most ( originally most billergerant), become the best customers.
Another thing I have found to keep good customers is to let them know if I am going to be late as far ahead of the chosen time as possible. One guy told that i was the first one to ever show up at the time he said he would, small things mean alot, to people, Just my opinion.