Cause and effect.

Not quite the butterfly effect but when the son borrows the mother's car resulting in the mother borrowing the father's car that then leaves the father having to cadge a lift from the son-in-law to get where he wants to go. The father then has to use public transport to return home.
What takes a 15 minute journey in the car turns into over an hour by bus, including waiting time. This explains why there is a photograph of a bus shelter with people for today's blip. What else was I going to photograph whilst waiting for the bus to turn up.

Song.