Manchester United fans were quick to ridicule Jurgen Klopp following Liverpool's shock defeat at Southampton on Monday night.
The Reds boss was adamant striker Sadio Mane should have been awarded a clear penalty by referee Andre Marriner after his side fell to a 1-0 Premier League loss at St Mary's.
Danny Ings put a dent in his former club's title aspirations when he lobbed goalkeeper Alisson to give Saints the lead with less than two minutes on the clock.
Mane looked the most likely to pull one back for the visitors and he went down in the area just before the hour mark - under the challenge of Kyle Walker-Peters - but Marriner waved play on and VAR did not take a second look at the incident, which the Reds boss believes was a penalty.
Indeed, Klopp felt hard done by and took a swipe at United, who have seen Bruno Fernandes score seven penalties this season.
He said: "We cannot change. I hear now that Man United had more penalties in two years than I had in five-and-a-half years. I've no idea if that's my fault, or how that can happen.
"But it's no excuse for the performance. We cannot change it, we have to respect the decisions. But we can change our performance. That's our focus now."
United fans, however, were loving Klopp's outburst and joked that they were living "rent free" in Klopp's head.
One said: "We are back. Everyone hating us means we are on the right track."
Another added: "Rattled, it's beautiful to see."
A third fan said: "Cry baby cry."
United fans responded after Klopp hit out at the decision not to award Mane a penalty on Monday night.
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Klopp claimed: "I turned around, we had a really good view of it. It looked like a clear penalty. I turned to the fourth official, he said 'we checked already, no penalty'. That's the 100 per cent truth. They checked it already.
"We had the situation last year against Leicester with the penalty, and people say 'Sadio Mane goes down too easily'.
"If this boy went down easy, we could have had a penalty in this game and a stonewall penalty in the last game.
"But what Andre Marriner did with Sadio Mane tonight, I'm not sure that's OK, to be honest."