If I really wanted to get together with him, I wouldn't want to pass him by just because he says he is open to P&P. If he had to be cranked in order to play, I think I would say no. But if it was one among a variety of services and it wasn't a requirement and otherwise the impression was good, I might take a chance on him. So much conversation about P&P is tinged with that reflexive attitude that the client is a victim of the provider.
One time, I drove a long way to get together with a guy and, when I got there, he was clearly cranked on meth. I chatted with him for a few minutes, told him I didn't think it would work and left.