Creighton University sophomore Adam Wilmut is under the mistaken impression that he managed to masturbate Tuesday without waking roommate and top-bunk occupant Scott Engram. 'For about 10 minutes, I could feel the loft frame vibrating slightly,' the 19-year-old Engram said. 'Then, the vibrating escalated just a tiny bit for about 30 seconds before stopping altogether.' The incident marked the fifth time in as many days that Wilmut's stealth masturbation was detected. 