Mum: Did you know you left the aircon on in our room?
Dad: Cannot be what, I turned it off before I left.
Mum: Hmm.. but it’s on now.
Dad: I definitely turned it off ok.
Mum: Ok, and I’m telling you that it’s on.
Dad: Then it must have turned itself on. Cause it wasn’t me.
Wow. Compelling argument.