A child with AD/HD [ A.D.D. OR ADHD ] is usually described as having a short attention span and as being distractible. In actuality, distractibility and inattentiveness are not synonymous. Distractibility refers to the short attention span and the ease with which some children can be pulled off-task.
Both the U.S. Navy and the U.S. Marine Corps authorizes service stripes to those service members for every four years of service. In cases where a disciplinary infraction has occurred, the service member is not denied a service stripe but simply is authorized the standard red stripe design.
I have heard that the Army and Marine wore their chevrons pointing up to indicate that they fought against Native Americans. It is more plausible is that it was based on the whim of the Army. Eric Brenner, 25 years US Army; intelligence, special ops, antiterrorism.