I'm not sure I can help with another analogy, but I will try and explain why I think what J-Lo and MM were doing is nothing like what MM did to DP.
There are a lot of grey areas in racing, however there are some that are black and white (except when they're not, Laguna Seca)
For convienience, I have posted a video of le smack
http://www.youtube.com/watch?v=HhsNJg1NLFg
Go ahead and watch, I'll wait....
Now, imagine that instead of that nice big runoff area, the track limits are defined by a 9ft high brick wall. That would be an attractive Marky Mark stain on that wall wouldn't it?
Now I realise the runoff areas are there for safety, and so they should be, but they are not acceptable race surfaces. There are only 2 acceptable reasons for being in there.
1: You ...... up
2: Someone else ...... up/was riding like a .... and left you no racing room.
Now, I think we're all agreed Dani is the innocent victim here, so we can rule out reason 2, leaving only one explanation for Mark being in the runoff.
He ...... up. He's a great rider, I'll give him that and he always rides on the ragged edge. The only downside with being constantly on the edge is that, sometimes you're gonna fall off. He left his braking too late and overcooked the corner. Even if Dani hadn't been there, he wouldn't have been able to stand the bike up again without using the runoff.
Compare this to J-Lo and Marky Mark.
I've found another video. Aren't I good to you guys? Incidently, this video gave me a boner.
http://www.youtube.com/watch?v=IZNo7op9ntE
That's two guys battling. Staying within the defined limits of the track. Sure, there's a couple of love taps, but nobody is being driven off the track, and nobody is being smacked hard enough to knock them onto an entirely different line.