Arthur Gonsalves was just tired of vandals stealing his homemade Donald Trump campaign signs, so he rigged a device that appeared to be an alarm to protect the third one.

That’s when police converged on his house in Andover, Massachusetts Thursday afternoon “to investigate a report of a suspicious device,” the Eagle-Tribune reports.

They said the state bomb squad was on its way to inspect the black box with wires hanging down, but canceled it after they heard Gonsalves’ story.

The man claims he affixed an old stereo equalizer to his homemade Trump for President sign when they kept disappearing. He wrote “booby trap” on the white sign that read “TRUMP” in red letters and “danger” on the box.

Andover police Chief Patrick Keefe tells the Boston Herald “a bicyclist passing the sign” thought the crude dummy alarm “looked suspicious” and mistook it for a bomb.

Since Gonsalves’ house is on the border of Andover and North Reading, units from both municipalities converged on his home and set up a parameter.

“This was not done with any malice,” the 75-year-old Trump supporter tells the Eagle-Tribune.

Andover police spokesman Cmdr. Charles Heseltine says the department does not plan to file charges against Gonsalves “at this time” over the incident.