Not a hater usually, but man did I hate this camera:
Olympus Infinity Stylus. Bought one brand new from B&H in the early 1990's for an "always have it with me camera" when I was living in NYC. Loved the idea that it fit nicely into my pocket and the little sliding door protected the lens, and I didn't have a lens cap to lose. Whenever I would see something happening on the streets of Manhattan (which was pretty much always), I would pull the camera out of my pocket, slide open the door, and . . . NOTHING! The camera refused to turn on. That happened at least 50% of the time when I was trying to use it. So I returned it and B&H gave me another one. Same issue. I missed so many shots, sliding that stupid little door back and forth, back and forth, back and forth; trying to get the darn thing to turn on. Man I hated that camera.
End of rant.