These nursery rhymes might seem innocent, but they're not!

They help prep kids for school shootings

A mother in the US has shared a picture from a kindergarten classroom, with instructions for a lockdown drill to the tune of Twinkle Twinkle Little Star

Georgy Cohen was touring the kindergarten for her daughter when she spotted the rhyme shared the image on Twitter. 

Lockdown, lockdown

Lock the door

Shut the lights of
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!

Do you think this is morbid, or necessary?