I am ever amazed with how something can come out of my mouth one way and be interpreted another. Sometimes I wish I could record myself and play it back, listening to my inflection and tone. In my brain I hear things a certain way but it seems I am often not able to communicate my point.
I blame it on being the baby of the family (BTW, I blame most things on this beautiful familial position). As the baby, one has to shout to be heard, must assert thoughts and feelings into a full home with the smallest voice. As a kiddo, I not only shared my house with my brothers and sister, I also shared it with about 15 other kids on average ~ my mom ran an in-home daycare. From 5 am to 7 pm, the house was always filled with babies, toddlers and school age kids shouting, screaming and playing. If I wanted my mom's attention (which was ALWAYS), I had to be bossy, sassy, loud and overall a pain in the ass. Yep, sounds like a few "babies of the family" I know now! So if you have multiple kids and find that the baby of the family is a bit tedious and exhaustive - cut them some slack. They just want to be heard, be special and have their own representative voice in the house. I'm sure you already know they are always right, so just acknowledge them and move on. They just want a little bit of extra attention!