f**k off. if thats the image you got good luck. near enough all the staff at the store that me and my brother work at are students doing degrees that range from computing, design, medicine etc. So pritty damned clever people.
So basically you have just reinforced my opinion that Mac Donalds staff are generally young casual workers. Which is what I was in fact emphasising in the first place.
No need to have a sense of humour failure, Mac Donalds is a sh*t hole! Just admit it and laugh at the place like the rest of us.
(Btw... just because someone is at uni doesnt mean they are pritty damned clever)