Many years ago I used to play badminton with a group - many of whom worked at Capenhurt - the Nuclear fuel place. They actually worked on the fuel itself and in researching it.
One of them lived in an old house - semi or terraced - and the fireplaces in the 2 houses were back to back. He had problems with ants and the nest seemed to be in next-door's fireplace.
SO he got a firm to come in to look at it.
Anyway during the conversation he commented that the ant man was coming tomorrow
I seemed to be the only one to think it was a joke - dunno why
they could be a bit sensitive about joke close to their profession!!