In the hours leading up to the DTM's final race at Misano, two-time series champion Mattias Ekstrom gave a perfect insight into the sort of teacher he was for MotoGP star Andrea Dovizioso during his guest drive weekend.
"I told him before [the weekend], if you want to let everybody go it makes no sense to go racing. There are the rules that I expect him to follow - which he has done [on Saturday]. If someone breaks the rules, we take no crap from no one - if someone behaves badly, you give it back. It's 'OK if you do it, I'll do the same'."
Those are the rules of conduct in wheel-to-wheel battling for someone stepping off a MotoGP bike and into a tin-top that produces over 600bhp, plenty of downforce, and has tricky-to-manage tyres, but Ekstrom's mentorship was exactly what Dovizioso needed.