Manners, much?

A car stopped to let Rocket, Petal and me cross the road. We all waved to say thanks, unfortunately Rocket followed it up with:

'Thank you... IDIOT!'

I was appalled. Petal was appalled. She turned to her younger brother and told him:

'That was a rude thing to say to that very fat man!'

I pray that his windows were wound up.

I didn't dare raise my beetroot face to look.