Woman replaces shampoo with vinegar to figure out which roommate is using her products: 'I called them out'

Sharing may be caring, but using without permission is cause for petty revenge…

Sure, roommates share things all the time but those items are usually agreed upon by both parties. It's not even about being possessive of one's belongings; it's financial as well. If you and your roommate share groceries, then the cost for groceries should be split evenly amongst everyone in the household. Some of you are probably wondering why this needs to be addressed, but you'd be surprised how many entitled roommates think they can get away with mooching and not paying their fair share. 

For this roommate, the issue was that the contents of their bathroom products always seemed to go missing. So, the Redditor decided to experiment to figure out who the culprit was. Keep scrolling below for the full story and for the best reactions from folks in the comments section. For more, check out this post about a teacher's malicious compliance with her school's ridiculous dress code policy.