The man who came up with ADHD called it a ‘fictitious disease’ on his deathbed.

http://www.snopes.com/politics/quotes/adhd.asp

which serve to "excuse bullying and recklessness" and "offer a sense of alleviation of personal responsibility among those diagnosed" would indeed find validation if Dr. Eisenberg had proclaimed "ADHD is a fictitious disease."  

The claim that Dr. Eisenberg asserted "ADHD is a fictitious disease" is reproduced on countless web sites as something he said "seven months before his death in his last interview," which would place the date of his utterance around February 2009. When documentation for the putative quote is provided, it references an article (often described as a "cover story") published in the German weekly Der Spiegelon 2 February 2012.