correctly guessed the answer to a question toilberg asked me this morning trying to catch me out. The only possible reason he could have asked this question is because he KNOWS I don't know the answer

had I admitted I didn't know then I would have been admitting not having done a specific task correctly for the past year in this job. Could tell he was confused when I gave the correct answer (entirely by chance). He definitely thinks I'm a complete slimeball, which I am.