Residents of the Belgian town of Zedelgem, disturbed by the sound of a high-speed car chase, rushed outside to find it was raining euros and started helping themselves.
About one million euros had flown out of a safe that burst open when fleeing robbers panicked and threw it out of the car window.
That was two weeks ago and, with just half the cash so far handed back, police have written to residents asking for the rest of the money back and warning that anyone keeping it could face a two-year jail term.