[snip]
I have observed this in the Pullman on the 18-03 from Paddington, when a customer would arrive in good time and "book" four seats by sitting on one and placing belongings on the other three.
They would be most aggrieved if I turned up with an actual booking.
If I was ever on the programme Room 101 then this along with people sitting on the outside seat on a packed service would be on my list. Its the sighing and huffing when you ask the to move themselves or their belonging that really winds me up.
I suspect though I'm nothing like as tolerant as I use to be.