As a kid, it always bothered me when my brother or sister would turn my answer around by saying, “Nuh-uh…today’s Opposite Day! No means yes!” And then they would barge into my room, cannibalize my LEGO house for the parts, write on me with crayons, or do some other thing that I had told them not to do. It bothered me because the idea of an ‘Opposite Day’ was not only ludicrous, it was impossible.
The argument is easy enough. It’s not a designated day, so it’s just up to an individual to declare. But if someone says, “Today’s Opposite Day” then they’ve just negated what they’ve stated and it’s really not.