I can relate to BeeGees. I haven't even seen a tick in all my years of running around the woods, but after reading the thread I am perhaps too acutely aware of them.
In addition, I am a little boggled why I have not witnessed any of these marauders. In my area, the only place I have heard mention of tick danger is Presque Isle in Erie. That doesn't mean they are not all around me, but I have not heard a great deal of discussion on them.
Like Brian, I also seem to make an unattractive target for mosquitoes and insect pests. While everyone around me gets bit up by mosquitoes, fleas and other blood suckers, I go unscathed.
However, I have heard this attributed to a certain biochemistry rather than a diet. While I enjoy garlic, I don't eat it regularly. Additionally, my father is regarded by insects in the same manner as I, while my mother and three brothers are constantly harassed.
I guess I must be either lucky or ignorant, as I have been tick-free thus far in all my years of camping, hiking and other outdoor activity.
Now watch me get ambushed by the little bloodsuckers the next time I go caching.