“Sometimes you just need to cool off!”

Videos posted online Monday — showing NYPD cops being drenched with buckets of water by residents in Harlem and Brooklyn — were being blasted as “reprehensible” and “disgusting” by department brass. But there’s apparently some police officers who don’t mind getting wet while on the job.

A clip posted by the NYPD’s social media team back in 2016, which was tweeted out Monday by the Sergeants Benevolent Association, shows Brooklyn North cops getting pelted with water balloons and soaked by a group of kids in the 79th Precinct.

The children appeared to be part of a summer day care group and were all smiling and laughing during the afternoon water war — as were the cops.

“Did you have fun?” one of the officers asks.

“Yes!” the kids yell back.

At the time, the video — which was accompanied by a tweet saying, “Sometimes you just need to cool off” — seemed innocent. But SBA President Ed Mullins on Monday argued that it set a dangerous precedent.

“Are you kidding me?” Mullins tweeted, just hours after the latest footage from Harlem and Brooklyn went viral.

“Lieutenant do you realize how many people you place in danger being stupid?” he said. “Do you need to kiss ass to get promoted? What are you thinking?The end result is uniformed officers hit with water,piss, bleach, gasoline & a spackling bucket that killed a cop in 1993.”

It’s unclear when the cops in Harlem got drenched, but sources said the Brooklyn incident took place sometime after 4 p.m. Monday near 1400 East New York Ave. The officers were a little more than two blocks away from the 73rd Precinct station house in Brownsville when the residents set upon them.

“Who does that in their right frame of mind?” asked one police source. “People who believe there’s no consequences.”

The incidents were being blamed on the NYPD’s “hands-off approach to these guys” under Mayor Bill de Blasio.

“There’s total anarchy out here,” the source said. “This is very sad.”

Mullins on Monday night called on Brooklyn North Assistant Chief Jeffrey Maddrey to do something about the viral video — and also urged Police Commissioner James O’Neill to step down.

“The members of the NYPD can NO longer stay SILENT,” Mullins tweeted. “This is about YOU! Each and everyone MUST stand together and demand a change. Someone is going to get killed! We do the job, wear the uniform and take care of each other. The time is NOW O’Neill MUST resign.”

Calling out Maddrey, Mullins said: “Chief- Don’t let us down. You were always a cop in the 67. This is a disgrace, these cops are victims of O’Neills bulls–t policies and every cop in the NYPD knows it. You included. Make collars, lock these pricks up.”

Maddrey sent out a tweet on Monday night, saying cops were still attempting to identify the residents involved in the viral incidents.

“An investigation is underway,” he said.