A year after Basic I was setting tombstones. This was a great job, quiet and all that. But the absolute worse was when we poured over 9,000 pounds of concrete as a foundation for a whole-grave job -- it was over 100F., humid, and the (I'm not making this up!) the water source was downhill from the graves and came from a shallow well.
The Boss went into town several times for icey-cold beer...we used the water to mix the cement.
By the way, we also put a 5-sides-polished, 2,000 pound slab of granite on top of the foundation. The lady buried there is in a coffin, inside a vault, under 4.5 tons of concrete and a ton of granite. We figgered that come Judgement Day she ain't gonna make the roll call.