In addition to some asked above, mine would be:
1. Do you really do CIM, anal, facials etc?
2. Are you really at the address you have posted?
3. How are your customer service skills?
4. Will you be off your tits when we meet on various hard drugs?
5. Are you actually the girl advertised?
6. If you hate this job/men, why haven't you left/worked out an exit plan?
7. Are you really a man advertising as a woman (no problems with transgender escorts for those who want them, but tricking straight guys into having sex with you is rightly a crime).
Pretty much covers the most common bad punt scenarios that crossed my mind/memory.