Arson attacks on wheelie bins could be putting lives at risk, according to Lincolnshire Fire and Rescue service.
They have already attended over 40 incidents this year and officers have said what may start out as a joke can have deadly consequences.
Bins fires can be of a very high intensity fire with toxic fumes, which can easily spread to property and cause further damage.
Crews said as well as the danger to others, arson is a serious crime.
Arson Task Force Manager, Steve Wright, said: "So far, we have been relatively lucky in Lincolnshire but we want to make the public aware of the problem to prevent a tragedy.
"Indeed a wheeled bin fire in Northamptonshire resulted in the death of a three-year-old boy, after the bin next to his home was deliberately set alight."