I had so called friend who used to show up in my room often. But he never showed his room. Every time I asked him about his room he dodged it. He used to use my laptop and one day I lost my pen drive from my room. I thought I lost on street somewhere. But could not convince myself with certainty because it used to be placed in same spot always. Pen drive had my college immigration documents.
So many months passed by but one day he pronounced some words that only someone who have access to my pen drive could. He dropped the soap. Then I never allowed him to my room again. Lesson learned.