Ok so my screening process is very strict, but I've never had a 'dangerous' client, only annoying ones (who I haven't booked with again). So I generally vet my clients by a set of (unspoken) rules -
1) Don't ask stupid questions that are clearly on my profile etc are you English, how much do you charge
2) Don't text me with 'u available' or 'u working'- guys I generally accept text me with a little introduction eg hey (name), I love your profile and would love to meet. I'm in town next week, how is your diary looking?
3) Manners; for example, if I say how long would you like to book for? And they reply with '30 mins.' and I get a weird vibe from them, they're probably naturally rude... opposed to something like 'I was thinking 30 mins, please?/Is that ok?' Guys who are straight to the point are fine, but if we have a backwards and fowards chat and there's not one please or thank you, I'm probably gonna not book.
4) No to too much use of 'babe' or 'baby'
5) No to spkin lyk dis prb means ur not my clientele bbz
6) I save numbers that call me in the middle of the late as 'Late Dickheads' - if I get a text from them in the day time asking for a boking, I don't accept. Inconsiderate assholes.
7) If they can't speak english very well, generally won't accept the booking (just can't be arsed with communication issues)
Offering me more money to do OWO when it's clear that I don't offer OWO at all
9 ) Same for anal
10) Like VC said, guys who go way too in to detail eg pages and pages of role play, I won't book in, as they're very likely TW's and are just wanking off (it's ridiculous how many guys get a thrill from booking an escort with no intention of going)
If I'm still not sure about a guy and he's not broken any of these golden rules, I'll put his number in to FB search to see what comes up or I'll add him as a contact and look on Whatsapp at his profile pic; I think you can tell a lot about profile pics etc, I'm not sure why or how but it just works for me, if they look friendly etc. If the guy passes all this screening and I STILL get a weird vibe, I go with my gut.... but there have been times where I've seen a guy who I had a weird feeling about and he was actually really nice.