I was getting to the point where I thought I must be just a disgusting human being who even a bug won't bite. Now you have answered one of life's mysteries.
As a male with hairy legs, I often use shampoo to bring out the fine highlights of my formerly ginger, now ginger freckled with grey deep carpeting of body hair. 
I must add, that I think perhaps I could teach those ol' mexicans a trick as I also carefully condition afterwards before blow drying.
Never been bitten!
I will try a hot oil treatment when I get home to Thailand next month and report my findings.
Great tip there Ms Soul, thanks. Because we're worth it !

.....and bugs aren't :-)