If burning of Joss Papers to Deities and Ghosts can help You Strike The Lottery, You won'y complain the smoke is killing You. Got Pray , Got Luck ... No Pray, Sure Die.
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You don't need to just burn for the ancestors and the ghosts. You can send to someone You hate or wish him / her dead. Western Kids can burn it during Halloween Festival , or hang it up as a pinata and smash it during parties.
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