The
anime nosebleed as a symbol of
lust or
arousal isn't caused by high
blood-pressure, it's a metaphor for
ejaculation. Presumably because the nose is both visible, and
socially acceptable...
Western films usually go for
phallic imagery, however...
trains going into
tunnels, rockets taking off, etc...
Dear god, did I just write this?
Yes, Yes you did...