One of my concerns would be the way "mistreating" other children is viewed these days. All schools around the world have "no bullying" policies. If kids' feelings get hurt with his whitty responses, they may feel bullied.
As for the way he reacts, I think it's his "normal" personality. Sarcastic, dry sense of humor that we as adults might gravitate towards, but that which a "normal" 5 year old won't even understand let alone "accept", if that makes sense.
So imo, even when there's a little intention behind it, it's not a huge issue for your DS and his personality. However, it could be a mountain if it's read incorrectly by the wrong person.
JJsMom
The comments about bullying are so helpful but it so weird to have to think about being appropriate in response meanness - what is acceptable when standing up for oneself, but of course that is an important social component.
So interesting you said he was sarcastic or dry - I would not have characterized him that way because he is sunny and silly with a wild imagination but yeah, inside there is wit and some slyness - almost like an adult peeking through the 5!
And of course, all this brings to mind, one's own behavior. A friend a long time ago told me her daughter's behavior was often like a mirror showing her things she didn't want to see about herself!
DeHe
