I have several teachers as friends and I am always amazed with the sheer number of "Clown Days" schools have.
"Clown Days" meaning days where instead of learning, the little kinder are marched off to the gym where they are entertained by clowns. Or during St. Patrick's Day where they have potato rolling contests. Or "Dunk the Teacher Day" where students raise funds by paying to have a chance to throw a ball and dunk a teacher in a dunking tank.
My friends estimate about 3 days a month are dedicated to "clown days." Multiply that by 9 months (which most students can't because they're too busy with "Pizza Days") and you are losing about a full month of education.
Of course management of the schools claims this helps the "morale" of the students and the teachers (as if they were in war or something). And that it betters the student-teacher relationship making teachers more friendly. And of course that's the problem.
Having a "friendly student-teacher relationship" is not what is in the best interest of the children.
Ever notice how you would never want to date/hang out with/marry a parent (or the child) who says "My mom is my best friend." Or "Oh, me and my daughter are BFF's."
It's the same principle. If you really want to be a good parent or teacher, the relationship is simply this;
The adult (be it a parent or teacher) is the authority, the child is the moronic youth that doesn't know anybody and should obey and respect the adult.
This shouldn't end either with the kid turning the age of 18.
Elders, in general, but especially those who are in positions of power over you, should be given some basic respect and courtesy. THis is of course unless they are corrupt (which happens frequently), but in general, if you are the 19 year old college student, you should not be throwing pies in your professor's face.
Of course, real professors and real men and women would never succumb to such a spineless act, but, eh, who needs leaders and ranks? We should just all be friends.