We all do mistakes. It is normal. Chill ! Things go out of hands. There are ways to handle the sitution. The best way is to ignore and be quite. Everything will go away. Giving attention to insignificant things is waste of time.
Most of the time I am not able to handle it properly. And it never go un notice. I gotta be careful all the time. Therefore, I avoid people all togther. You never know when other find my petty and harmless mistake so offensive.