As an ex miner, I probably would... (if I were younger).
At the start of a miners shift, he has 2 tallies, a silver one and a brass one. These tallies serve two purposes, they are a record of who is underground at any time, and they record each mans time underground for wage purposes.
The miner gives the banksman his silver one as he enters the cage to descend the mine, this is when his shift oficially begins, he is now being paid...
When he arrives back on the surface after his stint underground, he gives the banksman his brass tally, his shift is now complete and he is now off the payrole.
Lets hope those Chillean miners get paid for the whole time that they have been underground.
Cheers to all involved!!!