Yes, it does help a lot more when you give details as that is all we can go on. What you type. If you notice you wrote a completely different story and scenario the second round. Maybe he just does not like you. Not everyone likes each other or has to and maybe he has his own issues he has to deal with. But isn't that the joys of being the low man on the totem pole? You catch hell if they are just pecker heads. Many bosses are. If they expect you to drive a machine that a license is required for and they knowingly hired you without one then you have grounds to complain higher up for a supervisor harassing you to do something that sounds illegal. As for him being mean, I think you are SOL on that part. Keep dates of when the incidents and log actual interaction so you don't get tripped up or fuzzy recalling as if you are taking the meds that can easily be said to effect your memory if your supervisor chooses to say so.

The fact you have driven in the past won't leave you with clean hands I must warn you. Did this supervisor who has had you drive these in the past made aware you were unlicensed? These are all things you must take into account.

Sorry your boss is mean... I think there is a big farm somewhere where dick heads are harvested and then shipped nation wide, much like produce :) And you can come off harsh all you want, does not bug me, if I am not in the mood for harsh I don't get on the forum and what you typed was hardly harsh. We do not know each other, just blank faces bouncing thoughts and ideas off a computer screen.