When it comes to attention deficit hyperactivity disorder (ADHD), jokes abound. Take, for instance, Dug, the talking dog in Disney Pixar's Up:
My master made me this collar. He is a good and smart master, and he made me this collar so that I may ta—SQUIRREL!
For humans, ADHD is most often associated with young, energetic boys bouncing off the walls at school. The disorder affects plenty of working adults, however. Employees with ADHD might seem lazy, sloppy and forgetful. Maybe they're the one always arriving late. The one whose desk looks like ruins after an earthquake. The one who never seems to be able to meet a deadline.