When I was up north a couple summers ago, I went to pick up me DGDs. One of their friends got really nasty with their (my DGDs' gma) and said "Whatever, old lady!" I came unglued. Oldest DGD asked if we could take the "friend" home. I said gladly because she wasn't about to spend the rest of the day with us. They thought after shopping. I stated not after the way she spoke to your Gma. Told them if I wouldn't have to worry about going to jail, I would show her what happens when one shows disrespect to an older person in their own home. The girl looked at me and asked me to wait a minute, ran into the house and apologized to their other gma. I still took her home first.