Sen. Elizabeth Warren gave a schoolteacher shush to Tuesday night’s Democratic debate audience as she delivered an anecdote about the under-insured.

“This isn’t funny,” said Warren, directing her comments to a noisy Detroit crowd reacting with chuckles to her pivot back to the plight of Ady Barkan, who was diagnosed with ALS.

“This is somebody who has health insurance and is dying and every month has about $9,000 in medical bills his insurance company won’t cover,” Warren said.

“His wife Rachael is on the phone for hours and hours and hours begging the insurance company please cover what the doctors say he needs,” the Massachusetts Democrat continued.

“He talks about what it’s likes to go online with thousands of other people to beg friends, family and strangers for money so he can cover his medical expenses.”

Warren went on to rail against the “basic profit model” of health insurance companies, where they take as much money as they can in premiums, but pay out as little as possible in benefits.

“This is not working for Americans across the country,” Warren stated. “Medicare for All would fix that.”

She also urged the other nine Democrats onstage not to use “Republican talking points” when talking about health care.

“Look, let’s be clear about this. We are the Democrats. We are not trying to take away health care from anyone,” Warren said. “That’s what the Republicans are trying to do.”