It does happen in other industries though. A cosmetic surgeon i'm familiar with (not in a carnal way or a snip snip way jusssst yet;) ) mentioned he had to start charging an up front deposit for consultations- as He was receiving so many either
When his consultations were free,
A) People making appointments, asking lots and lots of questions and many phone calls about 'whats it like' and then showing up to waste time and had no genuine interest but rather wanted to see the before and after pictures.
B) As above, but not bothering to show up at all.
They'd also then try to rebook and go through the entire thing again and again.
Apparently even got the 'If I'm impressed I'll tell my friends to see you' type of line too. Got so bad he had to start charging for the initial appointment.
People who want to go through the fantasy of something with no intention to do so.... TW's are around for everything I think...So annoying