I was extended a good opportunity to do entry level web dev but left the interview because I felt the coding puzzle was too hard for the role, even tho I could’ve solved it. Computer Science/math heavy and easy if already familiar. I still feel bad and entitled about that but I acted on the signal I felt and told the truth.

Aside, I am all for suitably difficult challenges, and I distinguish engineer from developer. Dev shouldn’t get CS stuff, Eng should. Mention it to benefit other hiring managers who may be reading, if it rings fair.