Can probably top that for, well, eyebrow raising behaviour on the grid....
We had a grid of BMW's that had just formed. One of the front row drivers suddenly hops out of his car, just before countdown, and despite the protestations of Chief Startline, goes to the back of his car.
At this point the car starts to gently roll forward, with Chief Startline telling the driver to get back in, and trying to stop the car.
The driver does not say a single word to C-S/L, but undoes the bootlid, takes out a large cool-box, deposits it directly behind the car, and gets back in. He left the cool-box on the middle of the grid behind his car.
C-S/L then removes the box from the grid, glances to check the driver is suitably strapped in (he now is) and the countdown proceeds as normal.
Needless to say, Driver has to make a visit for tea and Oroes with the CoC after the race, but better still, has to retrieve his cool-box in person from C-S/L. Did he get a roasting...
For us, the downside was that the cool box only contained some manky sausage rolls, and a sandwich. No beer, crisps or chocolate, which, for sure, would have been seen as a suitable donation.....
