hahaha I did this and is why i laugh but honestly I got sick as hell. Probably depends on the nutrients but I had a gallon jug sitting there and there was another with plain and well needless to say about an hour later after I finished heaving and feeling like I had a horrible flu I realized what I had done.
I actually didn't mention how this happened to me. Well..
I'm growing a solo cup coco hempy for a contest and I have to feed it every day. I normally make up 2 gallons of nutes each day for my regular plants and put it in my watering can. Well my plants were fed and I had a scant bit left so I figured I would put the excess in a Aquafina water bottle for the tiny hempy. I filled her up, put the lid on, then sat it on my desk. I then proceeded to smoke a ball of scissor hash until I couldn't feel my face. Fast forward to a few days later and I had completely forgot about it so I assumed it was just a bottle of water. I was sitting down there reading this website on my ipad and decided the water sitting there looked delicious. It wasn't. Lesson here was to label shit before you are too fried to remember.