Barnet manager Ian Hendon was fuming after seeing his side lead twice but fail to win at home to Grimsby.
The Mariners fought back to draw 3-3 at Underhill, meaning Barnet have not won at home since 4 October.
Hendon told BBC London 94.9: "Poor is an understatement. The goals were all from set pieces - two from corners and one from a long throw.
"But I assure you we will get out of it. To say I'm unhappy with how things panned out is an understatement."
Barnet are now third from bottom in the Football League, and only out of the relegation zone because Bournemouth and Luton both received massive points deductions at the start of the season.
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