He is a human being like the rest of us, and he admitted it was a deliberate act after the game, saying "It was the minimum I could've done".
But Barca, whose cup quarter-final first-leg defeat here brought an end to their 29-match unbeaten run in all competitions this season, battled back and Pique ensured the spoils were shared.
After Gerad Moreno opened the scoring for Espanyol with a 66th-minute strike, his side took top gear and dominated the proceedings and looked on the verge of creating an upset but Pique came to Barca's rescue.
Gerard Pique is likely to miss this week's Copa del Rey semifinal against Valencia with a knee injury and faces a race against time to be 100 percent fit for the Champions League game against Chelsea later this month.
During the 1979-80 season, Real Sociedad set the record for the longest unbeaten start to a La Liga season with 32.
Pique prompted an Espanyol complaint to the Spanish Football Federation after the first leg of that tie after comments he made disputing the clubs' rivalry over the location of Espanyol's stadium.
Espanyol subsequently reported Pique to the Spanish Football Federation and he was booed throughout Sunday's match, making his equaliser for Barcelona an even sweeter moment for the Spain global.
Antonio Conte believes Chelsea need two or three more players
They could be leapfrogged by Tottenham if they beat Liverpool on Sunday, before facing Watford themselves on Monday. But in my vision, we are trying to build something important with our work; not with words, not with money.
They are enjoying an 11-point lead over second-placed Valencia and are 18 points ahead of their main rivals Real Madrid who sit 4 at the moment.
Barcelona went more direct in the closing stages, throwing Pique forward as an emergency striker in the final 10 minutes and the tactical switch paid dividends.
After that match, Pique's tone when talking about Espanyol infuriated rival fans and prompted an official complaint by the club.
Pique and Umtiti are likely to start at the heart of the Barcelona defence, providing cover to Marc-Andre ter Stegen behind them, with the German shot stopper likely to replace Jasper Cillessen in goal.
"One player won't silence our crowd", Espanyol coach Quique Sanchez Flores said.
"We just need to focus on competing and winning La Liga".
"The first team squad begin preparations at the Ciutat Esportiva on a rainy Monday morning in Barcelona with all the available first team players plus R.Tarín, R. De Galarreta, Samu Araujo and Dani Morer from the B squad".