Have you ever simply chickened out of something due to having been consumed by fear and anxiety?

Have you ever just thought, ” no way, I’d better leave now before I make a mess or die of anxiety”. Was it something important? Today I backed out of a new part-time job. It was the third day and the environment and particularly one important member of staff made me paralyze in anxiety. So, I just ended the day and walked out! Has that ever happened to you in any aspect of your life?