[Dylan16807]

If you see one, it might have been a gift or won. If you see 10 out of 20 with them, it becomes reasonable to assume it was a purchase.

The point of identifying a trend is to reduce the factors. If there isn't in fact a trend, that's when you look very closely at the individual person, or that's the point where you embarrassedly drop the subject because you made a false correlation.

Side note: I consider you rich if you can make payments on expensive-enough things, even if your debt is greater than your assets.