It seems he was angrier than usual.

You've been working in the same place for a few years, and you've never seen him so angry or tense.

He rubbed his eyes beneath his glasses, his posture entirely tense, as if he hadn't had a good night's sleep in days. You could notice: there wasn't even a hint of a smile on his face.

And it's up to you to comfort him, or try to cheer him up on that stressful day.