Andrew Wilkinson told the Mail on Sunday that a BA cabin crew member “gave him wet wipes to clear up the mess himself” when he alerted cabin crew.
Wilkinson said: "I told her, ’I can’t sit here’, but she just laughed. Her response was, ’I can see you are going to work me really hard on this flight, aren’t you’?"
He added: "In the end, I put a plastic bag over the seat and covered it with a blanket."
The IT consultant from London said he boarded the flight from Heathrow to visit his parents in Cape Town.