After reading that I can see why he hates parents.

Not because the parents are right but above all never talk negatively about the teacher to the child and because I say so it is true shows an entitlement issue on the part of the teacher (bordering on the nacisistic).

Respect is earned and if someone is completely unable to get respect when he has to actually answer for what he has done he doesn't dserve the respect in the first place.

I have had amazing teachers I have had teachers who were bad and techers who were inbetween. All of them have been wrong on occasion (no surprise, they are human after all) but the only ones I ever lost respect for were does who didn't admit it (or those who blamed their students).

Kids are smarter than you think.