This topic was hashed out a while back on another board. The people in the know said it was a naturally occuring lipid(fat) deposit. There seems to be a lot of people who think it's man made, not true.
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"King Camp ain't for pussies" -FishRanger
"I feel sorry for people who don't drink. When they wake up in the morning, that's as good as they're going to feel all day" - Frank Sinatra
Trouble is the structural steel that goes into the building of character.