NEVER, EVER DRIVE TIRED
I drove home from Huddersfield to Leicestershire at around midnight once in the early days of seeing Mrs Blacklineninja way back about 8 years ago. There was nothing else on the M1 and I was having difficulty keeping my eyes open.
The next thing I knew the car was vibrating like crazy and I managed to miss the central reservation at the very last second having previously been on the inside lane - I'd blacked out and drifted across all three lanes!!!
Pure fear kept me awake until I got to the next service station where I tanked up on black coffee and fell asleep for an hour or so on the back seat before continuing my journey refreshed.