Working for 5 months as a junior dev. I receive a request to check out a data issue at client, no one knows what is happening. I quickly find a data import issue and let everybody know. Few days later apparently issue is still not solved. A senior data consultant approaches me asking for help.
senior: 'So, any idea what's wrong with the data?'
me: 'Yeah, someone messed up the import. Just delete it and import it again.'
senior: 'How do you know?'
me: 'Because <insert valid arguments>'
senior: Wow, very clever. Amazing work. I wouldn't have thought about that. Great job'

A few moments later I receive an email from the senior with all the stakeholders in the cc: 'I found the problem and I have a solution <copy/paste my words>'