I work as an operations analyst at a mid-sized company. One of my coworkers, let's call him Dave, has a sneaker-electronics resale side hustle. He’s pretty well liked, and we used to grab lunch a lot.

Over time, I noticed Dave was using our company’s shipping account like a lot. at first I thought it was just small stuff, but after months of seeing daily packages and digging into our logistics spend (which Ive been assigned to track everyday), I realized he was shipping all his orders through our company. I estimated he'd burned through several thousand dollars in costs the business was unknowingly covering.

I confronted him lightly once, saying, Yo, I think someone might notice this, and he just laughed it off and said, “They owe me.

A few weeks ago, leadership flagged rising shipping costs, and I panicked. If they audited and found out I knew and did nothing, it’d come back on me. So, I reported it not naming him, just saying someone might be abusing the system.

Long story short, they traced it back to Dave and fired him.

He texted me afterward basically saying I destroyed his life his wifes unemployed, they just had a baby, and I “ruined” his only source of income. He said I should’ve just warned him again or let it go.

Now some coworkers think I’m a snitch. Others quietly support me. I genuinely feel awful, but I also didn’t want to be the fall guy.

So… AITA for reporting it?