Sharing fiery views at work about the Massachusetts mom accused of killing her three young children could get you canned and still be legal, according to an expert on employment law who is following the case.

Still, Brenecki warned, a fired employee could still raise legal concerns if their Clancy-related statements were used as a pretext to get rid of them for other reasons.

"If a case like this came to the court system, it would not be viewed in the context of the free speech alone," she said. "It would also be viewed in the contexts of employment laws."

As a "general rule," however, she said employers would be allowed to prohibit such discussions about the case.

Other considerations would involve whether the speech took place during working hours, disrupted business operations or whether there was discrimination against protected groups involved in the firing.

"Every single case in our court system is very highly and intensely fact-based," she said. "So we cannot give...any specific explanation as to whether something would be illegal or not. We have to look at the facts."

Still, Brenecki advised against arguing over strong opinions at the water cooler.

"If you truly want to voice them in a workplace, then be prepared to have to find greener pastures," she said.

There could be other consequences as well. Earlier this month, an attorney named Alex Thomason said in a postpartum psychosis, while prosecutors allege she acted deliberately and understood what she was doing was wrong.

Dozens of supporters have rallied outside the courthouse, carrying signs and wearing shirts with phrases like, "Stand in Peace for Lindsay."

Jurors began deliberating after both sides delivered their closing arguments Thursday.

They will decide whether Clancy is guilty of first-degree murder, second-degree murder or manslaughter in the deaths of her three children — or not criminally responsible by reason of the insanity defense.

WATCH: Jury instructions outline verdict options in Lindsay Clancy trial

If convicted of any of the three counts of first-degree murder she faces, Clancy would see a sentence of life in prison without the possibility of parole.

WATCH: Judge commends attorneys for efforts in 'emotionally taxing' Lindsay Clancy trial

Fox News' Adam Sabes contributed to this report.