Dealing with a Tardy Coworker: AITA for Refusing to Cover Up?

A 28-year-old marketing employee refused to keep eating the fallout from her coworker’s constant lateness, and it instantly turned into a workplace drama. When Sarah (30F) kept showing up late multiple times a week, OP’s mornings started feeling like damage control, not marketing work.

To make it worse, their boss is pretty chill about flexible hours as long as the job gets done. But Sarah’s timing issues kept dragging everyone else’s deadlines forward, and the team had to scramble to keep projects on track. Then the boss asked OP directly why Sarah was late again, and whether everything was okay.

OP chose the truth, and now Sarah wants to know why she didn’t “have her back.” Here’s the full story.

Original Post

I (28F) work in a fast-paced marketing agency where punctuality is crucial. My coworker, let's call her Sarah (30F), has a habit of arriving late to work multiple times a week.

This puts additional pressure on the rest of the team, including me, as we have to pick up the slack to ensure our projects stay on track. For context, our boss is relatively lenient about flexible work hours as long as the work gets done.

However, Sarah's tardiness is becoming a consistent issue. \nThe other day, our boss asked me if I knew why Sarah was late again, and if everything was okay with her.

I felt conflicted. On one hand, I wanted to be a team player and cover for Sarah, maybe make up an excuse like traffic delays or personal emergencies.

But on the other hand, I felt frustrated by constantly having to adjust my workflow to accommodate her lateness. \nI decided to be honest with our boss and mentioned that Sarah's tardiness was becoming a recurring problem that affected our team's productivity.

Our boss thanked me for the information and promised to address the issue with Sarah. \nNow, Sarah is upset with me for not 'having her back' and 'throwing her under the bus.' She feels that I should have supported her instead of being transparent with our boss.

Despite her disappointment, I stand by my decision as I believe in accountability and professionalism in the workplace. However, Sarah's attitude towards me has become cold and distant, making the work environment tense.

So, AITA?

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This also feels like the coworker who said no to covering an oversleeping colleague’s missed work-from-home shift.

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That “just be flexible” vibe stopped being so cute the moment OP realized Sarah’s late arrivals were wrecking the whole team’s workflow.

When the boss asked OP why Sarah was late again, OP had to decide between a neat excuse and naming the recurring problem out loud.

After OP told the boss it was affecting productivity, Sarah’s reaction was immediate, cold, and very clearly aimed at OP.

Now with Sarah giving her the distant treatment, OP is left wondering if telling the truth was actually worse than covering for lateness.

What would you do in this situation? Share your opinion in the comments.

Nobody wants to keep making up for Sarah’s time, especially when the boss finally asked OP to explain it.

Still, you might relate to the employee who refused to cover Sarah’s chronically late shifts after “home office” excuses.