Not everyone was a fan of Line of Duty's series six ending, but when one viewer took their outrage too far, writer Jed Mercurio had the best comeback.
It was a heartstopping moment for Lorraine Kelly, though, who mistook the tweet hitting back at the "cheap little show" jibe as being about her.
The BBC police drama's creator has come in for a lot of criticism since Sunday night's finale which revealed that "blundering fool" Ian Buckells was the Fourth Man coordinating crime and police corruption.
Many viewers were furious that the mystery officer didn't turn out to be more of a criminal mastermind, but when one person overstepped the line with a rude complaint Jed couldn't help but show off one of the cutting putdowns he's known for writing.
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