As Bara said if 20 guys ask for an exact location without even thinking of booking that’s 20 potential dangers. With some locations I’m comfortable texting instructions once the client has arrived at the landmark and with some location I’d rather explain on the phone. It’s all a matter of how you perceive the location and how well a good listener is someone. I try to make it the least bit complicated and spot on and so far had no issues. Only my most trusted regulars can get a location by text before hand, because I know for a fact I am comfortable with them and I know no dangers could arise.