What would you guys do if you built a plane for a person and they paid you for your labor, but they had an open tab on some parts that you used and because you knew them you let them take the plane and now they forget on a regular basis that they owe you for the parts? Also you find out that they have sold the plane and you see them at shows and he does not realy say anything to you about it. What would you do? I am not going to mention any name just want some ideas and to get paid for product that has been used.