Comment by coroxout

Another stereotypically-opposite but actually possibly related pairing I find interesting: the OCD stereotype is "neat freaks" (not all that accurately, because hoarding is also compulsion-related, and many types of OCD operate on a different axis to neat/messy anyway), and the ADHD stereotype is messy and chaotic, but in a way they both centre around not being able to control what your mental runtime is spent on.