Hi all, we have a lovely local guy, who has become a friend, do some casual work for us. It started off with him giving our eldest music lessons then he started to do some outside maintenance work for us also. Sometimes he's brought along one or both of his sons to the outside jobs which I wasn't crazy about but I turned a blind eye to. Anyway today he turned up to teach our son with both his sons in tow as his wife was working - we hadn't known this. On noticing my surprise he said 'Oh they'll just sit with me' which obviously was never going to happen and not ideal even if it did. My daughter then got up and was lovely, playing with them both but then they teased our (lovely, placid) dog whilst in my daughter's room causing the dog to wee on her bed due to stress. I should add that we have just redecorated her room so this was all on her new bed and bedding and she was so upset by it. She also starts secondary school tomorrow so she's a bit wobbly anyway. I don't want to fall out with this guy as he's a lovely fella but I need to let him know that he can't just bring along his kids to jobs we're paying him for, however casual they are. WWYD?