I worked with a small team in a small office. Everybody is typically at their desk in silence with the occasional manager or sales person on the phone. At predictable intervals throughout the day, someone will get up and be gone extra long.
You know, and everybody else knows, they've gone for a number 2.
Occasionally a manager will say "where's X" and someone will respond they stepped out. Nobody cares, and yes I'm being neurotic, but it is still slightly embarrassing that everybody _knows_.
Again, nothing is devastating here, it's just... awkward.
The fact that I can have my morning coffee and then when the urge comes, march off to my porcelain throne without anyone knowing better, answer Slack messages from my phone, etc. is one of the great joys of no longer being in an office for me.