The train took a hard turn while he had a car door open and the unnamed man tumbled off.
He left some luggage, including some tools, and a beer behind. The man's belongings just sat there for a while before a male passenger reportedly picked them up and finished the beer, the Moskovsky Komsomolets reported.
He did keep the beer for himself, but the man plans on giving the tools away.
"I'm not giving it to the driver, he'll just keep it to himself. I'm not like that, I'm giving to my friends at a car repair," the beer-drinking thief reportedly said.
The Moscow Times reported that the event occurred on the "alcoholic train."