A couple of years ago, when I was at my mom's grandmother's place, she wanted to drink. She saw a pink "juice" in a small cubic bottle. She drank it without any resistance. After one sip, she realized that something was wrong, because she started to bounce back.
My grandmother, lying down in the kitchen, explained with laughter that some time ago she poured a dishwashing liquid into the bottle :D.
My mom had a stomachache for 2 days and got heartburn, so always be careful what you drink ;).