No not this time Graham, I'm no fan of nanny states or red tape. This is a real and genuine risk. My brother set fire to his bathroom doing just this. Ran a bath, lit the candles to make it all romantic for the good lady, got distracted, came back and the tea lights had set fire to the candle holders. Dunno what the wood was but he uses the tea light holders all the time now.
Its not a trivial risk, a very real one unfortunately.