A similar tale. My sister was sitting her first driving test. She was taken on a standard route on the morning of her test by her instructor, and happened to have a very similar route that afternoon for the test.
Reversing around a corner, she hit a bin in the road. All she could say in a fluster was that "it hadn't been there that morning!". She didn't pass. Don't think the OP would have passes his test for that piece of driving, but I sympathise, people make mistakes.