At every shop I've ever worked or been to it's always been custom to have the guard accompany every gypsy throughout their "shopping-round".
Sadly, there's much reason to do so.
Insulting the mother is an everyday use, we don't react to that anymore(unless it's from someone you really hate, than he's just calling for a punch in the face). Calling someone gypsy, or "cigane" in our language, is a pretty solid insult.