Better policing of yellow and waved yellow flags would help. With a dozen timing loops around the track and in-car notification from race control to the lights in front of the driver it is not hard to measure what drivers are not slowing down sufficiently. Set an expectation and police to it. It will only take a couple of drive throughs to change the current “I won’t try a pacing maneuver, but I’m not going to slow down any” behavior.
Not F1, but the was a NZV8 race down at Timaru over the summer where a car had a massive failure, dumped oil and went directly to megasmash in the tyre wall. Despite WAVED YELLOWS, cars were still spearing off on the oil and into the marshals trying to deal with the firey stuff and a out of shape driver TWO LAPS LATER. I’m not aware of any penalties being handed out. Txt’ed Bob McMurray when he was talking on Radio Sport a day or two later. He was all ‘yeah, well drivers don’t really slow down because they don’t want to lose touch with the car infront’.
Pace cars will continue to be required until measures are taken to make waved yellows actually mean something. Mind you, some marshals should really be let anywhere near a race track, even on a day when there is no racing. http://www.youtube.com/watch?v=6URo_2XMKHE
Hamilton had already spun and it was raining. And he can’t drive slicks in the wet like Button. Inters were the right choice.
I lol’ed at this
"I made a big mistake," Hamilton admitted. "My left front tyre was pretty worn so I went a bit wide at the chicane and spun, which is very, very rare.
Right up there with I always finish my sets.
and there was a mechanical / electrical issue with his DRS) 
Seb Vettel on Top Gear. Seems like a bloody decent bloke and not afraid to take the piss or have it taken. Quite a quick steerer too. Now if only we could arrange to get him into that Ferrari...
