I saw this elsewhere on MN and found it an odd comment.
"One boy in dd's class was always late. He used to play dad up badly once mum left in the morning and was always late. The school referred him to the Ed Psyc and he was diagnosed with adhd and since then has never been late."
Now, personally I find it hard to believe that they got a diagnosis and then POW everything is okay. 
I find the anecdotal stuff we see on threads to be really naive sometimes. Or perhaps that's just me. It just hits home to me how many people really don't understand SNs very much. 