Can I be spared of this one thing PLEASE

Where did the trend of saying My bad come from? It's not cute, in fact it's just stupid. Why do adults say this? I'm tired of hearing it. I cringe when I hear it. I want to throw things at the person who says it, heavy things that would cause harm. I want to throw a bucket of ice water on the person who says it. Maybe that would make them wake up to the fact that child-speak is not for fully grown people. So, if you are one of the ones who say it, stop. Please stop.