Fans of TLC's Jon and Kate Plus 8 know Kate Gosselin can be a strict mother.
But a newly surfaced video shows just how stern she can really be.
In shocking footage (posted on YouTube Thursday -- the day before she and Jon celebrate their 10th wedding anniversary), Kate sits with her eight kids as they prepare to do a television interview.
The kids complain they're thirsty.
"I want a drink!" Mady yells. "I haven't had a drink all day."
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Kate ignores her.
"Mom, I'm going to get dehydrated!" Mady goes on.
Kate dismisses her: "Yes, me too."
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Kate then orders a bottle of water. But instead of offering her daughter a sip, the mom of 8 takes a quick chug.
"I need a drink now!" Mady pleads.
Kate tells her to "be quiet," prompting Mady to cry, "You're really, really mean!"
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