Long story short, we did a large grading project, client decided to raise the grade of a portion of his yard more. We brought in and graded an extra 70 yards of soil, customer signs change. The change caused the customer to be $2,500 over budget. So at the end of the project, I had the customer pay the orginal amount, then we agreed to pay the change order of $2,500 30 days later. Mistake was I did this on a handshake agreement, now I can't get a hold of the guy. Anyone else make this kind of mistake before and what kind of clever ways did you use to handle it.