It starts out disguising the hairloss in the early stages, then as you lose more hair, you add more concealer.
I always avoided getting my picture taken at the time, but there are a few and you can see it getting worse & worse until (as I said) it was 70% concealer & 30% hair.
At the time its a gradual thing so you're not THAT aware of it, but I wouldn't have known what else to do but wear a hat.

So that guy you saw is probably the same.
It started out with just moving the parting a bit and then over time it got more and more until its more obvious than being bald.
---------------------------------------------------------------------------------------
Dino, its the best thing isn't it? NO MORE CONCEALERS! One of the REAL benefits of wearing!