It is not really responsible behavior. It is not well brought-up behavior. They missed a good opportunity to keep quiet.
Quotes about brought-up (2 Quotes)
Our parents were very strict. Not in a brutal or awful way, but there were definite rules, such as after six on a school night you didn't go out, and at weekends you had to be home by a certain time. It wasn't particularly sheltered, but we were well brought-up.