In which a Nerf toy causes a lockdown meltdown at a Long Island school.

A lime-green Nerf toy gun caused an hours-long lock-down at a Long Island school on Tuesday.

A 911 caller told Nassau County Police she saw a suspicious teen at about 7:38 a.m. Tuesday wearing a black jacket and carrying a black backpack at Elmont Memorial high School in Elmont.

The caller said he was also carrying a lime green gun.

It turned out to be something like this. Note for non-gun owners: They’re not even an attempt to look real. They shoot little spongy darts that don’t even hurt.

Eventually, a SWAT team somewhere is going to gun down a kid for toting an airsoft gun. These panics just about guarantee it. Just this week, police killed a Colorado man’s dog for no reason, after knocking on the wrong door. Mistakes do happen and these panic attacks are not helping.

Rather than having people like Barack Obama, who can’t tell a clip from a magazine, impose gun control, maybe what we need is universal firearms education. No one who knows a thing about real guns would have mistaken a Nerf toy gun for a real one.