Is it normal to eat unpopped popcorn kernels?

For some reason I have never been able to resist eating all of the unpopped popcorn kernels from the bottom of the bowl when the popcorn bowl is left out after everyone has finished. When you use prepackaged microwave popcorn there are always some kernels that don't pop because you have to take the popcorn out before the early popped kernels burn. I have been caught eating these hard kernels by my friends, and most of them have thought it was gross, but one friend admitted she also likes eating them because of the nutty taste. So, is it normal? Do you guys eat the unpopped kernels too?