Just had to sit next to very, very large gentleman in the (sold out) theatre. He wanted half of my seat as well as his own. His partner was not much smaller. And he had rank halitosis.
I have had 2 lots of spinal surgery, so getting comfortable is important to me. At half time I contemplated leaving, but the theatre put a seat in a vacant wheelchair space for me, but that obscured that lady behind until I was able to move a bit in the space available.
Well done to Theatr Clwyd tonight, but grossly oversize people who know they create a problem (his partner advised me to move seat! Where? It was sold out) should buy two seats. Thank "deity of your choice" it wasn't a long -haul flight. I'd have got off, shouting loudly......