Ya know I can only remember being swatted once as a child, so I was pretty much never spanked. I now enjoy when my husband and I get a little rowdy though. Once, my cousin, who happens to be a close friend, were talking about what we enjoy in the privacy of our bedrooms with our husbands.

Her mother was very quick to spank, and my cousin pointed out that she would never enjoy that in the bedroom, she was spanked too much as a kid. I would think if anything the adults who were hit as a kid (and I'm sure that was an awful experience) would be the ones that wouldn't incorporate that into adult play and intimacy now.
Does anyone remember that old TV show that was for grown ups but was a cartoon - it was about a psychologist who counseled couples? Well I remember seeing on one of the commercials for the program him saying, "Don't spank your kids. Spank each other". I thought it was funny. I would guess playing like that is not that uncommon in healthy adult sexuality. All the more reason NOT to do it to kids, but there are TONS of reasons never to hit a child anyways!