On Wednesday, Georgy Cohen took to Twitter to share a nursery rhyme hanging up in her daughter's kindergarten classroom -- and honestly, it's pretty dark.
"Lockdown, lockdown, lock the door/Shut the lights off, say no more/Go behind the desk and hide/ Wait until it's safe inside/ Lockdown, lockdown/ It's all done/ Now it's time to have some fun," the lyrics read.
Sung to the tune of Twinkle Twinkle Little Star, the rhyme is supposed to help kids understand what to do in the event of an active shooter situation.
“It’s jarring,” Cohen told The Boston Globe. “When I was in kindergarten, we had fire drills. It was different, we didn’t have these same types of threats.”