I’ve had the WORST and the BEST boss experiences and I haven’t even professionally started working yet.. hehe
After graduating from school I started working part time coz I had loads of free time in the holidays (before I started college)… I worked in this huge retail store until my college started… the boss was a stupid arrogant mean racist, in-his-mid-20’s man! I won’t get into the full details now because that’ll take up the next two pages! But I can tell u when I quit… It was around Christmas time so the store was superrr busy! I had already been tolerating alot of his nonsense, but one day, after wrecking my head with christmas shoppers all day long, after running up n down like crazy, and after making 15,000 euros on my check out alone, I heard him saying I was lazy!!! 
… that was it!! The very next day, I wrote a resignation letter to the senior manager of the store and explained EXACTLY why I was leaving.. because of that idiot! My elder sister was also working there as the cash officer and when that idiot found out I had written a resignation letter and mentioned his name in it, he told my sister to tell me never to come back to his store and that I should have given at least a week’s notice before leaving, I can’t just walk away suddenly… so I told my sister to tell him that its not his store, he’s only an employee there just like everyone else, and that if he doesn’t follow any procedures, WHY should I? 
Once I left, about 10 other people resigned after me! 
… and one of them even submitted a complaint about him in the head office in UK and the inspectors started an investigation over him 
… they found out he was stealing money etc. and gave him a written warning… its been over 4 years, so many people have left coz of him (including my sister) and he is still working there! 
About the BEST boss … that was only recently.. I did my internship with Roche pharma in 2009 and the head of my department was the ideal boss! I swear she was just amaaazing! Not because she wasn’t strict… she was actually very very strict but at the same time she was also very friendly… she was so direct and to-the-point… if u made a mistake, she wouldn’t eat u alive but she would tell u in simple words that it was ur mistake and it shouldn’t happen again.. if u did something right, she would acknowledge that… if u did something great, such as completion of reports on target, she would take the whole department out for lunch to show that she appreciates our hard work! And she would mention ur good work to the upper management, to other colleagues, so that it encourages us to do even better the next time. She was super intelligent, she knew her stuff extremely well, she was well worth the position she held, an amazing inspirational woman, who had the perfect balance between family life and professional life.. She is whom I’d like to be like one day!