My sister once took the book Daddy was reading out of his hands before telling him something important.
He looked utterly flabbergasted, but the rest of us knew that he could carry on a perfectly sensible conversation with any of us while reading a book.
The snag being that afterwards he couldn't remember the conversation, but could quote the book verbatim.
My DH can definitely NOT multi-task. It has taken him a fortnight just to get off his backside and tidy HIS TOOLS off our table before his sisters and brothers-in-law come this Wednesday,
I have in the same space of time, hoovered the entire house, washed the kitchen, bathroom, wash-kitchen and hall floors. Polished the hall floor, planned the menu, scrubbed the front and back door-steps, cleaned the bathroom and done all my usual shopping, housework and cooking as well.