Pretty sure there was a finger involved here.

Ralik Hansen, 28, believed that the driver, who rang every bell at 360 Snediker Ave. in Brownsville to deliver a package on Oct. 31, was a cop, authorities said.

“In his paranoia, he ran to the bathroom and grabbed a .357 and was trying to shimmy under his couch to hide in his apartment when the gun went off,” a law-enforcement source said.

Oh, well.