Not this year, but last year I came home late and there was a message on my door from my roommate stating that some of her friends had come into town and were sleeping in her room and the livingroom (doors to both rooms were closed) and that she was asleep in my bed. I crept into my room, got what I needed to change into for the night, got ready for bed in the bathroom and made a couple phone calls in the kitchen as quitely as possible, then got into bed. She was sleeping in the middle of the bed so I had a very uncomfortable sleep.
I woke up in the morning and realized it was just a bunch of pillows under the blankets.