The Real Housewives of Beverly Hills mom got savage when a commenter provided some not-so-gentle tips on hydrating at home.

When Dorit Kemsley asked her 5-year-old son, Jagger, to bring her some water bottles from downstairs, the child took on the task with fierce determination. The Real Housewives of Beverly Hills mother showed a video of her cherubic tot bringing the three bottles up the stairs, muttering to himself with the pride of pushing through a challenging task, "Must! Keep! Going!"

In her caption, Dorit wrote: "I love Jagger's determination when I asked him to bring me 3 bottles of water from downstairs. 'Must keep going!" She followed the caption with three laughing emojis — but not everyone was so amused. Dorit was on the receiving end of some pointed comments.

First, let's take a look at the video in question:

After taking this in, a follower wrote: "Surely you can afford some sort of water filtration system so you don't have to buy bottled water? Plastic is choking the earth." Dorit's response?

"We're so broke we can barely afford food for our children. Please help us and donate to our fund pissoff.org." Savage!

Keep scrolling to see the exchange.

For more news on Dorit and the rest of the Beverly Hills 'Wives, be sure to catch new episodes of RHOBH every Tuesday at 9/8 c. In the meantime, catch a peek at tonight's episode in the teaser below.