I laugh every time I read about it but I swear it applies to so many professions not just the ones listed.
If a doctor, lawyer, or dentist had 40 people in his office at one time, all of whom had different needs, and some of whom didn't want to be there and were causing trouble, and the doctor, lawyer, or dentist, without assistance, had to treat them all with professional excellence for nine months, then he might have some conception of the classroom teacher's job. ~Donald D. Quinn
I love it...especially the part about having different needs and some who don't want to be there...