A couple in the US state of Florida got a surprise when opening an Amazon delivery after finding 65lb (30kg) of cannabis inside, local media report.
The pair from Orlando spoke anonymously to local media about the unwanted drugs drop.
They ordered plastic containers to use for storage, but the package arrived weighing far heavier than expected.
They said that Amazon had offered them $150 (£110) in compensation for the incident via email.
Police in Florida told local news station WFTV9 they had seized the drugs and were investigating the incident, but said that no arrests had been made.
"When the first officer got here, she was in disbelief," one of the customers reportedly said.
"We were still pretty fearful our home would be broken into, and we didn't sleep there for a few days."
In a statement, Amazon told the BBC: "Our customer service team worked directly with the customer to address concerns and will work with law enforcement to investigate the case, as needed."