Ok, when we travel we tend to run into some sort of weather-related issue.
At Heathrow we were waiting to board our plane. The Business Class folks were asked to board but then there was a long wait & no one else was called. Then, the Business Class passengers all walked off of the plane.
We were only told that there was some sort of mechanical issue with the plane & that our flight would be delayed.
A few hours later (did we mention that Heathrow does not seem to have air conditioning) we were able to board the plane. The pilot made an announcement to explain the reason for the delay saying that the plane had been hit by lightning as it came into Heathrow during the previous flight.
Go figure!