The thing about donating platelets is that I apparently have to discount the rest of the day, and just assume I'm going to be a slug. A slug that provides a nice warm lap for cats. Which, cats assure me, is a very important and necessary task.
(as long as I also periodically get up to feed cats, of course)
Cat: What are you doing on the computer? Why are you not petting cats? *pokey biscuits*