As I was going to…
Aka ‘The Downfall of Pushing a wheelbarrow from John O’Groats to Land’s End’
A man pushed a wheelbarrow from John O’Groats to Land’s End;
he didn’t go from Land’s End to John O’Groats because that was all uphill; so it was from John O’Groats to Land’s End that he pushed his wheelbarrow, there proudly in front of him (not a euphemism). Upon reaching Land’s End, he found that he had forgotten to check the brakes on the wheelbarrow, and they both went over the edge, landing in the English Channel, where he was eaten by krill.
A true story.