Dd3 has been unbearable at home since about 2, but a little improved now that she is almost 4. Mostly she is demanding, no please/thank you, often barking requests rather than using a normal much less 'nice' tone. The other major issue is not taking no for an answer; hardly ever. It is crazy.
I was extremely relieved to find that at school anyway she doesn't act like a bossy monster. She started preschool about 2 months ago and they think she is very nice. Go figure.
Some days it feels like she's in time out 1/2 the time she is at the house. If we didn't have another child who has pretty good manners (for a 9 year old boy that is) I would think we were the worst parents.