Fabricio Coloccini says frustrated Newcastle United fans had every right to vent their anger at Vicarage Road.
Steve McClaren’s side were knocked out of the FA Cup by Watford on Saturday.
Troy Deeney condemned Newcastle to a fourth successive defeat – and yet another early cup exit.
United had the better chances – Ayoze Perez and Aleksandar Mitrovic missed opportunities – and the game again underlined the need for striking reinforcements.
The relegation-threatened club’s 2,809-strong travelling support vented their anger in the second half.
They chanted “you’re nothing special, we lost every week” and “we want Newcastle back”, while there were boos at the final whistle.
Captain Fabricio Coloccini – who had made his first FA Cup appearance in four years in the third-round tie – insisted he “understood” the reaction from the away end at a sodden Vicarage Road.
“It’s normal, because the fans have to express,” said Coloccini.
“They love this club. They travel for this club, they support this club. They give everything for this club and they want results. That is normal.
“They are unhappy, and they have to know we keep trying and working hard to get those results.
“We have had some nasty results, but we all want to win and turn this around. We understand them, and we are working to improve things for them and for the club.”
Watford’s goal came, against the run of play, from a mistake. Georginio Wijnaldum attempted to pass the ball back to Coloccini, playing in the middle of a three-man defence, but it rolled to Deeney, who rounded goalkeeper Rob Elliot to score.
“I went to intercept the ball, and when Gini had the ball I tried to give him the space to give me the ball,” said Coloccini.
“It was just a mistake. Everyone can do a mistake.
“At the end of the day, we have to think about the chances we created, if we keep doing that we will win games.
“We are disappointed, because we have been thinking from the beginning of the season about this cup and now we are out of it.
“The positive thing now is that we are still creating chances. When we score those chances, change our luck then we will start to win games.”