Ahh Master....you beat me to it!
tha wick effect, I used to be very scared about blowing up into a ball of flames then I watched a programme about wick effects
link herebasically, you need an excellarant....channel perfume in one case, then ignition...hot fire, too close, ciggie dropping on you.....also something to knock you out....a fall, an attack etc (or being old and dead in some cases!)
the fire smoulders for a bit then goes whoosh, then slowly the fat from your body melts
imagine an inside out candle, the wax is in the middle and the candle is wrapped in cloth.....you set fire to the "wick" the cloth and then wait, the cloth will burn a bit then as the wax melts into the cloth it keeps the fire going longer,
if you look at old fashioned oil lamps, the wicks that stands out st the top burns quite quickley untill the flame reaches the point where the wick is saturated in oil, a small piece of wick can burn for hours if dipped in oil, if it was just the wick with no oil it would burn immediatly
hope this has put some fears out of your head now!!