I don't agree brit. Cos its certainly not conservative to slap your son in front of guests, Allahu alim.This is like a strict no no. I can understand her in private reprimanding him since ok what he did maybe according to them culturally wrong hence embarrassing ..though again slapping your children is never never right.But by doing what she did she only brought upon more humiliation to both her son and their family reputation. she obviously had issues!