Nikki Phillippi - who has almost 1.3 million subscribers on YouTube - had bull terrier Bowser put to sleep after he bit her son Logan.
She said her dog of almost 10 years was the 'ultimate cuddle bug', but he had an 'aggressive side', and while the latest incident 'wasn't that bad', it prompted her to make the difficult decision to euthanise him.
Explaining the decision in a post on Instagram, she said: "Bowser had an aggressive side that reared it's ugly head a few times over the years... and recently he bit Logan....
"After a lot of counsel, we decided it was time for Bowser to pass peacefully on.
"I know a lot of you will be shocked to hear this... my brain is still shocked.
"McTrowsen [Bowser] has been part of our life and content HIS entire life...and for the last 9 years of our marriage...We didn't want to make this decision...as I'm sure you can imagine."
She continued: "I'm not kidding when I say this was one of the saddest days of my life.
"That being said, I'm so grateful we got to hold him and kiss him in our home while he passed...I will be uploading a video tonight with more of the story if you want to know....
"We will miss you forever Bowser."
In the video uploaded to YouTube, in which she elaborates on the story behind the decision, comments have been disabled.
However, on the Insta post, they are there for all to see - and lots of people have called out Nikki for putting down Bowser.
One person commented: "Some dogs can't live with kids but that doesn't mean they shouldn't be allowed to live."
Another said: "So you knew about the aggression issues before a child was brought into the home?
"What were you guys thinking. Clearly not about the dog or child just money, clicks and views. So sick now the child is bit and the dog is dead. Way to go.
"Hope you make lots of money!!!! I pray you don't get another animal."
A third added: "The grossest part to me is the photo shoot before having the dog put down. Glad you weren't too distraught to produce some content first!"
LADbible has contacted Nikki for comment.
Featured Image Credit: Instagram/Nikki Phillippi
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