All, or certainly most, of my teachers kept on telling us to say if we didn't understand what they were on about. They were not being patronising. It's OK not to understand and not to be understood. It's also OK to say you don't understand and to say that you think someone hasn't understood you.
Isn't it? 
It always has been in my world.
New series of *This city is ours* on iPlayer now
Airbnb new rules - can't ask guests to wash up!
Hotel and parking at Gatwick airport
Anyone Delays their Kids for Kindergarten?
What foods that you aren't allergic to don't seem to agree with your body?



that's interesting!' (My children rumbled that one years ago!)