They wanted a simple garage sale advert, to help sell some unwanted baby clothes and knick-knacks.
But the young family ended up being pestered by "gun nuts", visited by undercover cops and terrorised by strange figures lurking outside their Burnside, Christchurch, home.
Bianca Jolley and her partner Tim Austin booked a free advertisement in the Buy Sell & Exchange newspaper for their garage sale last Saturday.
But they were shocked to discover a mistakenly printed headline, in red capital letters, above their classified ad which read: "RIFLES, SHOTGUNS AND HANDGUNS".
Their phone soon started ringing. Ms Jolley, 32, said: "These gun nuts kept phoning up asking what shotguns we had, and we were like, 'Excuse me?"'