Mack, you know, the one who couldn't find his calculator but could remember which numbers and function were involved in a math problem ten minutes later. Yeah, him. He took the last roll of dog poo bags out of the box sometime last week, and neglected to tell me they were gone before I went to work at the store I buy them at! THIS is Executive dysfunction!
ETA: a year later and he doesn't know where his calculator is again...