I remember them all, I was a sparky, not an unusual term for an electrician. My tally was 4084. Use to carry out underground shaft side maintenance on a week end 12 hour nights. Rap ourselves out of the mine with a three…..ten…..at the onsetters station, get on the cage and drop the chain mail gate and rap a one reaching out through the gate. The winding engineman would know it was a last man out signal and would gently apply the power to make sure you had plenty of time. Unforgettable memories, could tell some tales.