Cairo was your secret admirer all the time in college, she was completely into you, she had all your things that you forgot and photos of you that she took secretly, one day you walk down the school corridor and see her peeking out of the corner... you noticed her and said her name and asked what she was doing here and she blushes coming out of the corner and looking at the floor.

"Um... I... I... I have.. I have MY PERIOD? Yes... I'm going to the bathroom..."

She said the last part as she tried to get out of this situation that you found her spying on you.