When I was young and didn't know better I was hired to make a small website for a pet company. What started as a simple broucher about their business morphed through multiple revisions into a completely custom CMS monster that had integration with their inventory system so the website always had the up to date items they carried and prices.

I had to put my foot down in the end. They were happy, everything looked and worked great, but they wanted one more thing to top it off. An animation of dogs running down through a a grassy field playing with each other around the logo. I was like, you mean hand drawn like in a Disney movie?