This phrase often means that something is disorganised or in the wrong order, but it is also used in spoken English to say that someone has been unfair or inconsiderate.
So very early on, I discovered that in fact, working in a farm was not designed for me, and China was a very safe remove from any career in Australian farm life.
A child with ADHD might have trouble paying attention, daydream a lot, forget or lose things often, talk too much, or act without thinking about the consequences.