I have discovered the very definition of boredom: Sitting in a broken down car waiting for rescue.
No matter what you have with you, no matter if you have a phone with a decent 3G signal, no matter if you have a brand new car radio with all the digital channels you can eat, you will be begging for death's icy hand to take you within five minutes.
In my case, it was driving to work yesterday.
The heavens opened, I switched on the windscreen wipers, and after a few half-hearted sweeps, there was a metallic 'PING!' as the driver's side wiper got stuck in the up position, while the passenger-side one wiped away like billy-o.
Unable to see where the hell I was driving (although I could probably drive that route to work in braille nowadays), there was naught to do except sit by the side of the road until the rain stopped.
After five minutes, with Twitter at my fingertips and all the digital radio stations I could eat, I was begging for death's icy hand to take me.
After six minutes, it stopped raining, and I dashed to the local garage for what would almost certainly be something very minor but very expensive.
I once had to wait three hours with a flat battery at the side of the road. I was so bored, I actually rigged up a McGyver-style killer laser out of torches, tools and other junk in the boot of my car, before the AA van arrived. All they found was a pair of smoking boots in the layby on the A35.
My advice to you is to never break down. Those six minutes were the longest in my life - tears, despair, self-loathing, the whole nine yards. Always have a second car handy, tow it behind you if needs be. Don't let this happen to you.