It took me over 12 years for my first clipless incident (and it was an adjustment issue on a demo ride), so I'd agree with UMD that not everyone has an learning mishap (although I learned to always check the adjustment after that day).

Like another poster, I learned on cages/toe straps and clipless is a no brainer in comparison. I still sometime feel the urge to reach down and loosen up a strap as I'm coming to a light (and it's probably been 20 years since I've regularly ridden w/ toe straps).