"I went to work early that day and noticed my monitor was on, and code was being written without anyone pressing any keys. Something had logged into my machine and was writting code. I ran to my boss and told him my computer had been hacked. He looked at me, concerned, and said I was hallucinating. ..."

it would have been funnier if the story then took a turn and ended with it was the AI complaining about a human writing code instead of it.