when i was in middle school, i developed a strange and isolated case of sleep walking ... while we lived in this one house i would always goto bed in my bed room and wake up on the couch . the whole house past the hall to the bedrooms has security beams from 2 feet up to the celing. i would just walk through or around the beams ... and not set them off somehow ... unless i was movin' like an inch worm ... it was soo funny because the first time i did it, my mom walks to the edge of the hall and sees me. i guess she assumed i turned the alarm off and walks through ... LOL everyone in the house had a rude awakening !