Know what you mean. I was lucky enough that at the last race in Leicester, I was able to relax in Rescue 1. At least getting a good view from my vantage point. only getting 'alert' on the final lap in case the expected happened (as it has done in previous years--- C337 through a bush--- Tripacer with fuel starvation in a field a mile or so away).
But through the race I was even able to shut my eyes for a minute or 2