Mr Anderson
Eats, shoots, leaves
This can’t possibly be true. I don’t believe that 1 in 6 or even 1 in 10 seats are empty on average.
Or then again maybe they are.
10% would be the the average for most paid event no-shows. Work, travel issues (breakdowns, flights, trains etc), sickness, Can't be bothered to attend due to form or opposition etc - will always be people who just cant make it for whatever reason.