Husband: “Can you please turn off the bathroom tap when you’re done with it?”

Me: “Me?! I was going to say the same thing to you! I’m always finding it left running!”

Husband: “It’s not me! It’s you!”

Me: “It’s not me! I always turn it off!”

Husband: “I don’t know why you don’t just admit it. It has to be you!”

Me: “Let’s put one of the Nest cameras in the bathroom, and we’ll know for sure.”

Husband: “Fine, but you’ll regret doing this when we see that it’s you.”

A day later, the truth was revealed.

It was the cat. 

It turned out that our cat was turning the tap on to drink from it.