One brave scientist got honey bees to sting him repeatedly in 25 different spots on his body to see which area hurt the most.
You can see the body parts that entomologist Michael Smith subjected to bee stings in the illustration to the right. He rated his pain on a scale of 1 to 10 for each body part.
Unsurprisingly, "All the stings induced pain in the author," the scientific study published in the journal PeerJ states.
The nostril, the upper lip, and penis shaft were the three most painful. The skull, middle toe tip, and upper arm were the three least painful.