Once upon a time I was departing Manchester, returning to work abroad.
While waiting in the dep. lounge a work colleague arrived for the same flight.
As we sat talking he mentioned something to do with his work - producing bill's of material (BOM's). As he was happily blabbing away about his BOM's I noticed a couple of armed police approaching... luckily I managed to shut him up (being from God's country, I was a bit more aware of the connotations ) before they heard... and they passed by.
Phew... !
We often had a bit of a laugh about it afterwards, how easily we could have changed accommodation for the night......... !!