Jack Midson scored a late double as AFC Wimbledon twice fought back from two goals down to beat Gillingham.
Gavin Tomlin fired in from just outside the area before setting up Jo Kuffour, who smashed the ball past Seb Brown.
Luke Moore scored for the Dons with a shot from inside the area but Tomlin then headed in his second before Garry Richards's own goal made it 3-2.
Midson's penalty, after being fouled by Matt Lawrence, and his deflected shot secured the Dons' comeback.
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Gillingham boss Andy Hessenthaler told BBC Radio Kent:
"I'm very shocked. To be 3-1 up with 20 minutes to go and lose the game is criminal. It is not acceptable, that's two weeks in a row.
"We cannot defend. The worst goal of them all was the second goal. It's weak minds and lazy minds. That goal was a complete joke.
"We've lost two on the bounce. Twenty games to go, have I got to do something defensively? Yes I have.
"I felt sorry for the new boys who came in. I'm devastated for them because to get us in that great position at 3-1 and lose the game it's unacceptable."
AFC Wimbledon manager Terry Brown told BBC London 94.9:
"It was an incredible result. We got 1,000-plus supporters today. To go down 1-0 after four minutes and fight back and then to be 3-1 down with 16 minutes and to come back was a credit to the boys.
"I'm not sure we could have bounced back a few weeks ago but we were able to do that today.
"Credit to all the boys, not just the new boys - they have stepped up to the plate today."