Opposite Day (Is It or Is It Not)

I remember doing this when I was in grade school. Or do I?

Every Wednesday was opposite day. Or was it?

It would be funny for most of the day. Or would it?

Everything you say or do today is really the opposite of what you mean. When you say yes, you really mean no; and when you say no, you really mean yes. Or do you?

Confused? I think I have confused myself, maybe you'll need sticky notes to keep you on track. Or do you?