nope
Not legit.
The closest I got was back in High School (83ish). I was home sick, bored so I started rolling dice.
I was rolling percentile. I rolled a 00 and decided to roll up a character. 4d6 drop the lowest, no other re-rolls, but assign as you see fit. Sure enough, one roll was an 18.
I knew my DM would not believe me, so I told him exactly how I did it. He let me keep it (nice guy, I let him be the best man in my wedding years later).
The character turned out to be a Dwarven Gladiator (from a Dragon Mag NPC article I think).
I have never seen it done either.