These guys still have to pay and wait while your lft result comes through negative infront of them .so what are they going to do if it shows positive especially their test ! If they dont trust in the first place they shouldnt waste escorts time .
As regards STI .. I'd been asked before( in the past) the booking and refused to see them ..I didnt work deliberately with infections wtf do they think were doing . If they thought it's so risky they should stop seeing ladies altogether.