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.