I don't think it was a very nice experience at all. First thought, was this the owner, or an employee? It shouldn't make any difference to his reaction, I was just wondering if it would be in order to write/phone/email the owner with an account just as you have written here? No one likes to think that they have been cheated. I understand that fat quarters often (at least here and in the UK) cost more, because of the cutting involved, but in this case, since he agreed to cut your fabric, if he was intending to add an extra cost for doing that, then he should have made that plain before he started cutting.