A California man is heading to prison for a scam involving cow manure.

Prosecutors say 66-year-old Ray Brewer scammed investors by promising to build “anaerobic digesters” that would convert cow manure into green energy.

He raised nearly $9 million – but Brewer’s plan turned out to be a load of… well, you know.

This week, Brewer was sentenced to six years and nine months in federal prison.

Ever get an offer that you knew sounded too good to be true?

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