Like teachers?
I don't give my parent's the respect I should, I know I should, but I just can't help being cheeky sometimes. My Dad said something like "And you wonder why you won't get a rise" and I just HAD to say "Because your tight" Parent's don't like it when you say that

I give some teacher's respect, others take it for advantage by making you fear them. Our year has the worst head of year possibly, he's banned almost everything.