PEPPER SPRAY OUT:

Chemical In Women's Tears Turns Men Off (LAURAN NEERGAARD, 1/06/11, AP)

If a crying woman's red nose isn't a big enough turnoff to a man, a surprising experiment found another reason: Tears of sadness may temporarily lower his testosterone level.

Those tears send a chemical signal as the man gets close enough to sniff them -- even though there's no discernible odor, say researchers from Israel's Weizmann Institute of Science.