DETROIT, Mich. – Police in the Detroit suburb of Highland Township are working to figure out who left a pan of brownies in the teachers’ lounge at Spring Hills Elementary that allegedly sickened three teachers.

A 44-year-old teacher at the school reportedly became sick around 3:30 p.m. last Tuesday after consuming a brownie from a batch left out in the teachers’ lounge earlier in the day. Two other teachers also allegedly felt funny after doing the same, and police tested the treats, ABC 7 reports.

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“We tested the brownie and it came back positive for marijuana, cannabis inside the brownie,” Oakland County Sheriff Michael Bouchard told Fox 2 Detroit. “So obviously you’ve got some serious charges. You’re not only tampering with food, but inducing a drug to the user of that food.”

One teacher was sent to the hospital because of her reaction, Bouchard said.

“She was hospitalized and a couple others also tasted it,” he said. “They were sickened but maybe did not eat the same number of brownies. Maybe not the same amount. One was taken to the hospital.”

Bouchard told the media whoever put out the brownies could face felony charges.

“I can’t believe somebody did this without telling somebody else,” Bouchard said, according to WTVR. “So if you know who did this, understand that someone was sickened and sent to the hospital so that’s the type of information we need to get so that we can make sure that this person doesn’t do it again.”

ABC 7 reports “school administrators don’t know if this was a malicious act or if someone made a batch of pot brownies for personal medical purposes and accidentally mixed them up with the brownies they intended to bring to school.”

Michigan residents can obtain permission from the state to use and grow medical marijuana, though many employers still require employees to remain drug free.

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Spring Mills Elementary serves students in kindergarten through fifth grade.

Parent Kate Lloyd told Fox 2 Detroit she’s relieved the snacks weren’t shared with students.

“I’m glad a child didn’t get to them,” she said. “Being a parent … I would be afraid for my child.”

Many commenters online believed the incident was definitely not good, but also likely avoidable and not life threatening.

“I’m pretty sure if those people would have smelled them before swallowing them whole they would have noticed they weren’t just your average brownies,” Lindsay Lince posted to Facebook. “Some people and the media like to demonize marijuana.”

“Baloney,” Don Richie wrote. “If there’s enough pot in the brownie to get you high, then the brownie tastes like pot. They knew when they took their first bite and kept eating anyways.”

“It is unfortunate that this happened, the good news however is that even if one of these teachers ate the entire plate of brownies and then another plate full and another the next morning everything would be fine,” Ben Yokel posted.

“No hangover or lasting negative effect no matter how much is consumed,” he wrote before citing statistics on drug deaths from the Center of Disease Control that reportedly show zero annual deaths from marijuana.

“Figures directly from the CDC … web site
Numbers of deaths per year in the USA
* Prescription Drugs: 237,485 + 5000 traffic fatalities
* Tobacco: 390,323
* Alcohol: 88,013 + 16,000 traffic fatalities
* Cocaine: 4,906
* Heroin: 7,200
* Aspirin: 466
* Acetaminophen (Tylenol): 179
* Marijuana: 0, none, not a single fatal overdose in all medical history and almost no traffic problems,” Yokel wrote.

Others posters believe that regardless of the long term effects, it’s still wrong to slip drugs to someone else, even if they’re relatively harmless.

“If you don’t know why you are feeling a certain way, different than your normal, or anything like you’ve ever felt before … people who aren’t used to the stoned feeling can get a little concerned,” Rob Normand wrote to 43 “likes.”

“It’s a … drug, and there are still some people out here that don’t get high, or intend to start,” Normand posted.