The Mirror Has Two Noses

A reader writes:

With respect to your post on noses and penises,

In mainstream Japanese animation marketed to adolescents, the nosebleed is comic shorthand for male sexual arousal. Typically, a man (teen to bent and aged) will unexpectedly encounter a nearly nude female beauty, and blood will begin shooting out from his nostrils like gore from a sliced villain in a Quentin Tarentino film.  With the rising popularity of anime and manga in the past ten years, American teens are probably familiar with this trope (lust-provoked nosebleeds happen with some frequency in the Cartoon Network's hugely popular DragonBall Z and Naruto cartoons, for example).

The things Dish readers know...