wtf?

Shopping in a store in Mahon today, I followed a couple out who had just bought an enormous case and 3 metres of wood beading. Nothing particularly strange about that; I only noticed because the case was my favourite shade of purple. What was amusing however, was watching the female climb on the back of a motorscooter clutching the items precariously and then the male driving erratically down the street.
What could possibly go wrong?