After his gas station was robbed two times within the span of three months, owner Frank Schwagel took matters into his own hands to protect his Shell gas station in Minnesota.

Discovered by local news station WJON-TV, Schwagel put up a sign offering discounts after 7 PM for police officers and anybody who can prove they have concealed carry.

And it’s not a small discount:

Schwagel claims he’s “trying to bring it to people’s attention that there’s been some robberies going on around town. “And these guys are coming in with guns and knives and threatening our employees. It’s pretty disconcerting. I just figured anything I can do to draw attention to the problem.”

Not a bad idea, but try telling that to the anti-gun lobby.