A young mother was alerted to a disturbing and possibly criminal situation thanks to security cameras in a day care facility — her baby was being nursed by a fellow day care employee.

Kaycee Oxendine told local news station WTVD that footage from security cameras inside the Carrboro Early School in Carrboro, North Carolina, showed the employee — who was a substitute worker — adjusting her top and then proceeding to nurse the other woman’s baby, according to the Associated Press.

“I said, ‘Oh, that’s not pleasant. That’s kind of nasty,'” said Oxendine.

“Ramp up the ‘ewww’ factor to 10,” one wife and mother who lives on the North Shore in Massachusetts told LifeZette. “Most of my friends are breastfeeding purists — they don’t consider bottles to be ‘real’ nourishment. This story makes me sick just thinking about it — it’s such an invasion of parenting, safety, and basic decency.”

Oxendine, who works in the pre-kindergarten class at the day care, said she had mentioned to the substitute that her three-month-old son seemed constipated, and the other woman, who was working in the nursery at the school, had twice asked if she could nurse him to see if it would help. Oxendine twice said no, she said.

“She said, ‘Oh, I have lots of breast milk,'” Oxendine told the local NBC affiliate WRAL. “I said, ‘Oh, that’s not pleasant. That’s kind of nasty. I don’t know you, and even if I did, no.'”

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But Oxendine said that as soon as she walked out of the infant room, the substitute worker “picked up my son and put him to her breast.”

Day care Director Daron Council said another employee reported the situation, and the worker is no longer there, according to AP.

To make matters worse, Oxendine said she had to bring the infant to the hospital that night because he was vomiting. After tests, doctors found the baby to be lactose-intolerant. She said she wants the worker to face criminal charges. Police are investigating, according to WRAL, but no charges have been filed so far.

“It makes me sick to my stomach,” Oxendine said. “If I had any doubt in my mind, I never would have walked out of the room.”

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“I would be livid, because whatever the woman had ingested was being passed to the child via her milk,” noted one commenter on Newser.com, which also reported the story. “Not to mention that breastfeeding is such a personal and intimate time between a mother and her child. Besides, the mother had made it quite clear when asked that she did not want this woman to breastfeed her child!”

What is up with moms who think they know best for others’ children? While the pushy day care worker may have mental health issues of some kind, many so-called “lactivists” seemingly won’t be happy until every baby bottle is banned.

Nursing enthusiast Jessica Anne Colletti, 27, posted a photo last year of her nursing both her toddler son and the child of a friend — at the same time.

Colletti knew the picture would draw huge attention (which it did), as the coy smile in the photo suggests. On her blog, she refers to the boys as “milk siblings” and refers to their “special bond.”

The La Leche League is all over “milk-sharing” — even referencing the Quran and something called “the mists of time.”

“This is far more common than most people realize,” Diana West, a lactation specialist and spokesperson for La Leche International, told the New York Daily News. “The concept goes back into the mists of time. The [Quran] talks about two children not genetically related but nursed from the same woman shall not marry because they are milk siblings.”

Related: Did Pressure to Nurse Their Babies Contribute to These Moms’ Suicides?

Here in the real world, decisions about how a baby is fed are up to the parents of that baby, with the counsel of their pediatrician, and in most cases, bottle-feeding a baby is just fine. When mothers begin imposing their will on helpless babies — the emphasis on “breast is best” has gone too far.