This was last month, but I just came across the Air Traffic Control audio for it now.
A Lufthansa flight began (and continued) its take off from Brussels Airport without any clearance to do so. In addition, an Aer Lingus flight was in its descent.
The air traffic controller had the Aer Lingus flight do a go around, and very politely scolded the Lufthansa flight.
That’s probably the most surprising part of this exchange for me.
According to the YouTube video description, the Lufthansa craft “should have held at line up position 2, not far from the intersection of runways 7R and 01.”
You can listen to the whole exchange below: