It's annoying when you try to explain prosopagnosia to somebody and they laugh like you're just more prone to 'duh' moments than they are. It's even more annoying when you realize that their reaction is entirely down to the way that you have presented it. How are you supposed to start a serious discussion about something like that when you are trying to keep a conversation nice and casual and you only have seconds to bring it up when the occasion arises? Maybe making them laugh is the way forward, actually.
Work tomorrow. Saturday. Ugh. Trying to write when I should be sleeping.