San Francisco-based ride-sharing service Uber just announced a presumptuous policy banning drivers and passengers from carrying firearms.

It’s working out really great so far… for armed robbers:

He was really riding shotgun.

A man with a rifle robbed an Uber driver after he was picked up in Queens early Thursday, officials said.

The 30-year-old driver for the app-powered car provider was on 67th Ave. and Burns St. in Rego Park just after midnight when he stopped for a 22-year-old customer.

After agreeing on a price, the suspect jumped into the front seat, flashed his rifle and demanded the cabbie’s money, cops said.

The thief made off with about $60, officials said. The driver wasn’t injured.

The driver wasn’t injured, this time.

Now that the company has publicly announced that they are “gun-free,” criminals will intentionally target Uber drivers as easy marks, just as retail stores who have publicly announced that they are “gun free” almost always see a rash of robberies after those announcements are made.

Why?

It’s quite simple: violent criminals operate on a primal, Darwinian level, thriving on weaknesses both real and perceived.

Ironically, until very recently UBer had a reputation for being relatively safe and was trusted by lawful gun owners, due in no small part to the success of an Uber driver in Chicago who brought down an attempted mass shooter who was charging towards a crowd, firing an illegal weapon.

Instead of capitalizing on the goodwill this driver created by saving human lives, Uber instead cravenly recoiled in horror, and determined instead that the magical thinking of turning Uber vehicles into moving “gree free zones” would somehow improve the safety of their drivers and passengers.

This time, the Uber driver survived this flawed policy.

The next one may not be so lucky.