SC - the only ones that run away will be LDM. Therefore, rejoice with a loud voice as they do...and check out their butts one last time, if you like.
NMB - I don't think it would be hard at all for a woman to tell if a guy is HD. Can you say "boner"? One complimentary (suggestive) word from a beautiful woman is enough to "see the results".
Mike - if only guys had a socially acceptable "moisture test" to identify HDW