There are moments in all of our lives that could have been done differently or better, but for the most part, the P4P world is designed to minimize those occurrences. Clients have ads and reviews that establish expectations, experienced providers have the skill to adapt to each client. Sure, there are sessions that were disappointing for one reason or another, but few of those were events that I would try to "do over."
That said, over the course of a more than dozen years, and hundreds of sessions, three come to mind immediately that I would take a Mulligan (or two or three) on:
1. The first time I met Marie Sinclair. I has a terrific time, maybe my best "first meeting" with a provider. As we wrapped up our time, she started to pack her bag, even though it was evening. Apparently, she had driven to town just for my appointment and was checking out to drive home. I don't know why that has stuck with me for 10 years, but I wish I would have asked her to extend.
2. A provider named Kristie. I had seen her a number of times over a few months period. After going down on her, I slid up and we got into hot camel slides. Nothing was said, but I'm sure she was giving me the opportunity to slide in bare. I've had plenty of camel slide sessions, but taking it to bare penetration is generally not something I do; but that's one case where I would do it if I had the Mulligan.
3. A provider named Sarah. I had more session with her than any other over the years. In the midst of our last session before she retired, there were several outside distractions that really put a damper on a sweet goodbye. I'm not sure what I'd do differently, but, like Groundhogs Day, I'd like to try until I get it right.