John Oliver just did what he did best: demolished a harmful industry piece by piece.

On the latest episode of his HBO show “Last Week Tonight,” Oliver tore into AI chatbots, those oh-so helpful tools that can sure save us “significant time writing emails,” he opened, with the small cost of “everything else on Earth.”

“The more you look at chatbots, the more you realize that they were rushed to market with very little consideration for the consequences,” he warned, on a more serious note.