The fallacy of patronymics

Yes, I've missed a couple Saturday posts, this was mostly due to serving as the model contest chairman for the National Model Railroad Association's Midwest Region at the recent Badgerland Express region convention.  The delay is also due to some last minute findings on the surname that I was going to post about next.  I'm still digesting the information that I've found for it and will post it at a later date, but in the meantime, I've made another observation that is important to remember when researching family history.