When a guy requests incall tell him you are not currently set up for incall but if he wants to meet you at a hotel, you will be happy to get the room in your name if he wants to reimburse you the cost of the room.

If he agrees to that - you aren't out anything, the guy paid for the room and your fee.

I am low volume myself,  when I hold an incall I wont see more than 3 in a day and they are usually spaced out with a couple of hours between each one.

I usually charge $50 additional for outcall if they are more than 10 miles away from my location, plus when I outcall I only see one person.