The sales man that put our pool in, as we were chatting, it turned out we knew a group of the same people.
I asked about a particularly flashy, outgoing gal and we were axchainging some stories aobut her. She was always in the waiting room with a bunch of us and she would come straight in from her botox injections.
Anyhow, my point is, I guess this sales guy worked in contracting before the pool gig and had done some work in their (palatial) home. He was a private/corporate pilot.
He said they had shoe boxes and bags of money stashed all over the house.