Normal sibling behavior
Reassure me that it's normal for teenage brothers to argue -Thunderb
My experience, as a sib & as a Dad: if siblings don't quarrel, something's wrong. More specifically, if they reconcile swiftly while you're still donning battle gear, everything's normal. If arguments endure longer than three hours, consult your doctor. So to speak.
Not applicable to all families, of course.
Just all the families I know.