Helmet Doesn't Fit
Helmets were optional, but Jay and I were interested in having them, after hearing about the incidents (one death and one arm lost) in just the past week. I found one that fit eventually.
Theo would take us around the Ring in his Renault Mégane for an orientation lap before we went at it on our own. It was insane. If I didn't have confidence that Theo knew exactly what he was doing, I would have panicked. This track is full of ups and downs, blind curves, and other cars to avoid. You're trying desperately to brace yourself against the door frame, glove compartment, transmission well--anything!--to prevent yourself from being tossed around the cabin like a ragdoll.
The point where I thought, "Oh God, I might just die here" was when Theo answered his cell phone while screeching around a corner at 80 miles an hour. This was not a hands-free phone. The helmet was not, at this point, reassuring.