OK, if you want to pick the dangerous part of this, folks, it is NOT the construction. It is the fact of there being a pool, itself. Standing water kills children. It is one of the most prolific killers of children in the United States -- not as bad as that noted scourge, plastic buckets, but almost there.
Seriously -- we have REALLY warped senses of what is dangerous. What is the scenario for the pool "collapsing" when his children are playing in it? A 60 pound girl waves her arm displacing perhaps 2 pounds of water at a few inches per second, which then pounds the surrounding concrete to dust, causing it to fly at supersonic speeds into the water, in the direction opposite the water pressure? I didn't exactly do so great in physics but I'm finding that sort of unlikely.
The most likely failure -- his pool springs a serious leak. The garage gets written off. Oh well.
Seriously -- we have REALLY warped senses of what is dangerous. What is the scenario for the pool "collapsing" when his children are playing in it? A 60 pound girl waves her arm displacing perhaps 2 pounds of water at a few inches per second, which then pounds the surrounding concrete to dust, causing it to fly at supersonic speeds into the water, in the direction opposite the water pressure? I didn't exactly do so great in physics but I'm finding that sort of unlikely.
The most likely failure -- his pool springs a serious leak. The garage gets written off. Oh well.