Gribben is on the wind up.
But they couldn't deny Annan a party for going back to the top of the table.
Gribben - only on the field for eight minutes - hit a 20-yard equaliser in 81 minutes despite the wind and rain - and claimed he took the weather into account.
He said: "I knew the wind would affect it and I curled the shot. It hit the back post and went in.
"Some of the lads thought it was luck but I knew what I was doing."
Annan dominated the first half and it was no surprise when Peter Watson headed them in front in 18 minutes.
And four minutes before the turn, Ian Harty volleyed home a second.
Scott Gibson's attempt to clear the ball saw it slide off his head into his own net in 77 minutes to set up a tense finish before Gribben struck.
Annan's Michael McGowan was red-carded in 86 minutes for swearing and a second yellow three minutes later saw Berwick's Steven Notman take an early bath.