Emi Martinez's sixth minute blunder was all the excuse Manchester United fans needed to pile into the Aston Villa keeper on Saturday, taking revenge for the Argentine's antics at Old Trafford.
Bruno Fernandes' stinging shot caught Martinez out just six minutes into the clash at Villa Park, spilling the ball between his legs for the opening goal.
The red-faced stopper pleaded to the referee but there was no escaping the error, and the Red Devils faithful immediately cast their minds back to an incident in September at their home ground.
Emi Martinez dropped Bruno Fernandes' long-shot to give Man United the lead on Saturday
United fans instantly remembered when the Villa keeper taunted them back at Old Trafford
United earned a last gasp penalty after Villa went ahead through Kortney Hause's controversial opener – and Martinez was seen daring Cristiano Ronaldo to take the penalty instead of Fernandes.