Thanks BobM and Wayner. A couple weeks ago a friend and I were soldering together a circuit in a room with W/W carpet, on a wooden door, plastic sawhorses, steel chairs, but the feet had rubber cups and nylon covering.

2 heat vents blasting straight down on us. Just moving would charge us up. We were invincible, no fear of static!! haha
We zapped an opamp, but didn't even know it until after assembly and it didn't work, wasting a week to get a replacement before we could listen to it. We never felt a zap, but it could have happened after it was already installed by just touching a wire. Amazingly, those warnings really are correct, static does kill chips!
Rich