I found I get used to it pretty quickly. First handful of drives with a new car I'm paranoid about everyone else, but after a couple of months it's like driving anything else.
Next time, perhaps suggest he drive it more?
I completely agree, he needs to drive his stuff more. I didn't ever enjoy any of my cars, until my ACR when I decided it was time to give track driving a go.
I'm hooked. If I could, I would be at a different track every weekend. My only problem is, I don't find it nearly as interesting to drive on the street anymore.