One of our 'fully insured, licensed' guys did a service upgrade side job. The customer knew the price up front and agreed. At the end of the day when the check 'was not ready yet' [and we all know what that means] the woman told him to come back tomorrow and her husband would pay him. Knowing what might be happening, he said, 'no problem, the only item left is the fianl [weatherhead] connection. I'll do that tomorrow right after I get paid. He had a check in hand within 5 minutes. Bold, but it worked.