I had a trial done at a department store for a wedding (I was a bridesmaid) with contouring. It looked OK when they showed me so I happily left it on and swanned around town shopping etc. I did get a few looks which made me a bit paranoid but even the young guy in the cafe literally laughing out loud when he saw me didn't ring any major alarm bells. I'd seen my face, I looked OK, better than normal, I could pull off confident.All those contouring techniques come from drag. It looks great in a photo but in real life they look like they have mud smeared all over face.
I got home, looked in the mirror and promptly died. I quite literally had orangey brown stripes all over my face in big thick grease pen.
They didn't get the wedding gig thank goodness and I can now laugh as I picture the lad in the cafe's face but ahhh man the cringe was real at the time.