The Gnats Didn't Like Me Tonight

I was standing outdoors with a group of my friends tonight. They were quite annoyed at the gnats swarming around their faces. But I was astonished to note that, for the first time in my life, the gnats were leaving me completely alone! They would come by, and then keep moving.
My friends would put their faces close to mine to try to get away from them. We experimented by trading places a few times and the gnats always bothered them but left me alone.

I kind of liked this experiment!

There are only two reasons I can see for this happening, althought I'm not sure which one applies. One thing I've done differently is that I've used quite a lot of essential oils lately. (Putting a couple drops of oregano oil on my feet before going to bed at night, putting lemon oil in my mop water, etc.) The other thing I've done differently is that I've been eating a lot of garlic lately. Which do you think might have something to do with it? I have a feeling that one of these things is why the bugs left me alone tonight. COOL!