The secret of the bee beard. Put the queens from several hives in cages. Attach the cages of queens around the beekeeper’s neck, then let the assistants cover him with bees. The bees are tranquil. They join their queen as though the colony had decided to swarm (i.e. to leave one hive to colonize a new habitat). Mister Yang Chuan will still be stung several times in the face and this magic trick is not recommended for novices.