"I'm not drinking diet coke, that stuff has chemicals in it! I want REAL coke" I was volunteering at the local school fete and was selling drinks. Towards the end of the day we ran out of regular coke and only had lemonade, diet coke and raspberry left.  A sugar steam roller of an older lady (although obesity may have just made her look old) asked for coke and my fellow volunteer said we only have diet coke, is that ok?  With a disgusted look on her face she yelled UGH! I won't have THAT! It has chemicals in it! and stormed off.   Not two minutes later she returned and said "OK I will have a lemonade, I would rather have sugar than chemicals!" Still talking with a raised voice for all to hear about her bad life choices. I glanced at the water for sale and then sighed and sold her the drink. Fat logic I suppose?