I work in a general office setting, no tickling should be happening...I'm sitting there at my desk and there is a woman screaming and laughing at the top of her lungs...happens once...everyone just kinda looks around like...something must have reeeally been funny. Then it happens again and the laughing goes on for like 10 seconds...shreiks throughout and it's just one woman laughing....the woman next to me said "Jeez, is someone being tickled to death?" It sounded like it was coming from the hallway. It kept happening and no one had a clue what it was. If I had known better, somoene was watching a tickle clip on their computer. I walk around the hall, and see nothing...it's a total mystery.