Not an SP, but here's my take on read flags in general.Besides the obvious red flags you ask, what are your addition yellow flags you want to know about the new client before you accept the booking?
The thing about red flags is that they are built from experience as a protection layer against unwanted encounter. You look for behaviors that are potential signs of danger. Exposing them is like having a mine field with every mine clearly marked. Or using the best security system but with the blueprint on the front door. Giving the red flags away, is giving an opportunity to a predator to avoid scrutiny.
PS: damn, LC wrote an excellent answer while I was writing mine.




