Cajun Grilled Chicken Breasts

I love recipes like this. I always have the ingredients on hand, it is easy to remember and easy to tweak. This cajun chicken rub version is pretty mild to me, but that is obviously relative to the person's ability to handle spicy stuff.  If your family and friends like it spicy, double the cayenne and taste.  Keep in mind that the chicken won't be quite as spicy as when you taste the rub by itself, so aim a little high on the spice.  If you like it really spicy and your family are a bunch of wimps, just spice it up so you can eat all of the leftovers!  You can blame it on me if you want.  The oil in this recipe helps the rub caramelize a little faster, creating a nice almost blackened crust on the chicken breasts.