Yes I do agree with the sentiment Freddo, to a point, but I think mostly it is about learning from experience. You will find most Escorts have their time wasted when they are new to Escorting and they build up the knowledge they need to detect a TW as time goes on and also work out what works best for them, ie some ladies turn their phones off when they are not working, some only use Email etc, etc.
Sometimes it is impossible to get a gut feeling, as the guys are so convincing and act just like a normal client. It is only by recording their number and name and remembering how they operated the last time, as lolo did that you are able to catch them out the next time.
With this chap, there is still an element of doubt. He could well be a geniune client who has life experience, but on this occassion Ann does have to go with her gut on how she 'feels' about the booking. It's like the issue of why do some Escorts not see Asian or black men. This is the part of the job that has to relate to your comfort zone.
Like all things in life, it is far more complicated than it first looks, but of course, we make it look so easy