I do believe that the saying 'Do a Mowbray' has now officially been accepted into the English language.
In fact, I quite often accuse my wife of 'doing a Mowbray's and might use it at Sainsbury's later.
The main reason I dislike them is that one son smokes at least 40 a day and the daughter at least 20 a day and the daughter has a little girl aged 3. They don't smoke in the house, but do smoke in the car.
The one son is an alcoholic too. Always drunk 24/7.