Ebbie wrote; "What part of NO don't you understand? (I hate that.)"

I agree with you, Ebbie. The formula "What part of ________ don't you understand?" is often used by bullies. They want to make it look like other people are stupid, when the real issue is whether the bullies are entitled to what they are demanding.

I remember a case where some people started a gated community in New Mexico [or maybe Arizona] and were shocked to discover that the school district, which had been in place for decades, would be educating their kids with the neighbors' kids. How they howled! A resident sneered, "What part of GATED COMMUNITY don't you understand?"

See what I mean?