I'm not afraid to lowball, its a freeing experience. That said, if I lowball you, you'll know it. I'll mention it in the email/text, you know, to provide a little anticipation. Then, I'll shoot it all over you; a low number I'd be willing to pay considering my own time, distance, etc.
Now, if you don't enjoy my lowball, or its not up to your standard, that's fine, no real time wasted.
Of course, on the other side, I enjoy a good lowball from time to time. But I expect to be entertained for my time.