Knocking a candle with spill proof wick over When a spill Resistant candle is knocked over...... Ok I’m gonna show you what happens when you knock over one of our candles that has the spill proof wick on it which is the alfa we have here and also on the cube so here goes. So, fuel doesn’t come out apart from maybe a drop or two umm and the candle can usually burn quietly until you pick it up again. Now there it goes out.