My cat had an accident in my pants
This person had a terrible cold the day before but still decided to go to the office. Her sinuses were stuffed, she could hardly breathe, but she couldn’t take any more off days. As soon as she stepped into the office, she noticed people were staring at her in a puzzling way.
She immediately checked the bathroom mirror and didn’t find anything out of place. But around lunch time when her stuffed nose began to clear up, she picked up a pretty strong scent of ammonia. It turned out that her cat had peed all over her dress pants, and she couldn’t smell it due to her cold.