The whole Nextel and Nokia and Blackberry era, not a one. They looked a bit worn from a few years each in my pocket with my keys, but they all worked fine, and they'd all survive a drop to the floor.
Today the only phone I'd trust to survive a naked drop would be a Unihertz Titan, but until there's an AOSP ROM for it, I'm not trusting it with my data. So, cases on everything.