When someone makes a mistake, consider: is this an incident, or is it a pattern? Incidents happen once; patterns happen multiple times.
Unless the mistake is extreme, incidents can largely be ignored. If there is a pattern, then you can address the behavior and how to help them improve.
If you’d like more training on effective employee management, I’d love to come and speak at your next company event! You can learn more about how to make this happen at DaveCrenshaw.com/speaker.