I love this new paper in PeerJ - Honey bee sting pain index by body location. The author rated the painfulness of stings in different body areas relative to an "internal standard" sting on his forearm. Least painful locations were the skull, middle toe tip and upper arm (score of 2.3). The most painful areas, in reverse order were (cue drum roll): (3) penis shaft (7.3), (2) upper lip (8.7) and...... (1) nostril (9.0). I wish I had thought of doing this... well, almost. This must be a sure favourite for the Ignobel Awards.