Waist deep wading along a very long and grotty adit on the Cornish North Coast.
Reaching a crossroads, the guy in front tells me that there's a shaft in the centre and to skirt round it. I passed the message back to the guy behind me, "OK" he said.When I reached the other side I heard a commotion behind me, and turned around in time to see this guy's head disappearing beneath the water.
On surfacing he spluttered "I'll remember that on the way back"!
No prizes for guessing what happened 😉
"You Chinese think of everything!"
"But I''m not Chinese!"
"Then you must have forgotten something!"