Hoaxer made safari park bomb threats.
John Pendlebury Carter told emergency services: "This is a 9/11 serious call. Cancel all coaches attending Knowsley safari park or all passengers will die. This is serious."
Carter, 54, of Barrow, Cumbria, made the call and two similar threats from phone boxes in the town within the space of a hour.
Sentencing him to a suspended 50-week prison term, Judge Anthony Russell QC said the defendant was an "inadequate person" who needed supervised assistance.
Julie Taylor, prosecuting, told Preston crown court police traced the first two calls but Carter had left both scenes when they arrived.
He was spotted near to the third box he visited though at about 7am and waved to the police vehicle.
Carter winked at officers, held his thumbs up and then tried to evade the police before he was arrested.
Carter pleaded guilty to three counts of making a bomb hoax threat at an earlier hearing at Furness magistrates' court.
Defending barrister Roger Baldwin said: "Bomb hoaxes range from the sinister to the very stupid. In my submission this was at the bottom end of that range."
Carter must also comply with a 18-month probation order.