I'll try to make a long story short, but it relates pretty well to this.
My grandmother is addicted to pain killers, it runs in my family, my mother is too. When I had a defibrillator put in just over two years ago, I had some on hand post surgery. I also had prescribed aspirin. My grandmother told me she had some kind of sharp pain and said the painkiller would help her. I knew she just wanted it to feed her addiction. I said alright, I can bring one over for you. I brought one of the aspirins I had to her house instead. She said that doesn't look like a painkiller, I said it was a different brand, but it was. She took it and was knocked out sleeping. Prior to that, she was saying how "good" she felt. A few hours later I called her and she said she felt great. She did not know I gave her the aspirin. She was suspicious, but took my word.