I'm sure most of you have dealt with a bad customer in the past.
I came across this article where Perry Marshall goes into saying not to deal with problem customers and fire them if they bring nothing to the bottom line and take up more of your resources that you can be applying to your good customers.
The 80/20 Rule of Sales: How to Find Your Best Customers
Has anyone ever parted ways with bad/problem customers? What was your best method in doing this, killing them with kindness or taking a more direct approach?