My son's birthday is coming up and he wants a sleepover with his friends. No problem so far but he wants his bff to attend. This child has thrown my nail varnish over walls and carpets, drawn over my walls and dented my car by throwing toys out of the window, all this in his mother's presence who has done nothing. My son will be eight and all other friends invited are very well behaved. How do i not invite this child without offending his mother when she is a good friend. AIBU