So there was a fire this week in the flat next to ours. The robot vacuum cleaner was set to clean whilst they were away and it got stuck under a bookcase and eventually caught fire .
Luckily nobody hurt but extensive damage from sprinklers / fire / hoses.
The word ‘flak’ meaning ‘criticism, opposition’ comes from German ‘FlaK’, which is a contraction of ‘Fliegerabwehrkanone’ that literally means ‘pilot warding-off cannon’ and was used to describe an anti-aircraft gun.