One of the fundamental values we learn as children is never to use another person’s belongings without their permission. Doing so is a form of theft, yet some people can’t seem to grasp this principle.
The author of today’s story experienced this from his sister-in-law, who began using his skincare products behind his back. To make matters worse, everyone blamed him when the entitled woman experienced an adverse reaction.
The passive-aggressive treatment from everyone around urged the author to consult the AITAH subreddit for answers.