no good deed goes unpunished

Three Spanish police officers who were thrown into the sea when their boat crashed early during a high-speed chase were pulled to safety by the drug-smugglers they were chasing, police said.
The unexpected rescue happened on Friday after a police vessel began pursuing a speedboat “with four people on board that was suspected of transporting drugs” in waters off the southern coast of Spain, a police statement said....
The gesture did not spare them, however, when police found three tonnes of hashish in the water nearby.
“They were arrested for drug trafficking,” a police statement said, indicating that more than 80 bundles of hash had been recovered from the sea.