A lawyer would not be meh first option. Give the guy a chance to name things right. He will have enough grief by burning when he was not supposed to. Years ago when burn barrels were at about every home the wind blew some paper that I was burning to my neighbors strawberry patch. It was early in the season and io told her I would for any berries she lost. Strawberry season came and went but I did not hear from her, so I went over to ask her what I owed. She laughed and told me she had the best season ever.