Never light a trio of candles.
An open flame on stage is already a risk that many theatres would prefer not to take. The more burning candles in a production, the greater the chance that a fire can get out of control. Many theatres have burned down thanks to the use of open flames, especially during times when theatres were made of thatched roofs (Shakespeare’s Globe Theatre burned down when a cannon was set off during a production of Henry VIII). Then why aren’t we supposed to have lit candles in threes? It is believed that the person who stands closest to the shortest candle will be the first to die. Why do people believe that? The origin to that superstition was extinguished a long time ago, but we still follow the rule.