The source as above (MOL talking to Simon Binns)
We know you have to pay for sex and you have to pay to be at Manchester Airport too.
Oh God, I've never paid for sex in my life, am I really so old-fashioned guy? From my point of view, the most obvious difference lies in the approach to this issue. The sex need not to be a service (or should not if you ask me) and can (should) happen at no cost. In contrary, using the typical airport services ought to be paid for by the airline or at least by a sponsor, if available.
Kind of off-topic, sorry.