The Bees geared up for next weekend’s FA Cup tie with Brentford in the worst possible way.
They crumbled in Essex as they went down to a 4-0 defeat and Currie said it was a shameful showing.
“I’m quite embarrassed to be honest,” said the stand-in, who guided the club to a third round win at Sheffield United.
“For all the credit I have given these boys throughout my time in charge, and they deserve the credit as they’ve been brilliant, I didn’t recognise them.
“It’s a shock to the system. There was no fight whatsoever and that’s not good enough.
“I can get my head around a defeat along the way, but not a defeat like that. It was pathetic.
“It was the furthest thing I have seen from pride and passion this season.”