Someting exceptional happened.

Your person was improving the system. 

People took action to help others understand and operate the system better. 

Your person was demonstrating skills working the system as it is known.

Something happened in which somebody seemed to make an error.

A rule or procedure was not followed

Although the person knew about the rule, he or she decided that for some reason this was not applicable.

Person knew there was a rule and he/she knew she broke it, but that suited him or her just fine.