Saturday afternoon, optimistic construction workers poured yards of fresh concrete in the Wrigleyville bar district along Clark Street.
Then, as they prepared to leave for the day, they flagged down a cop and asked the officer to keep an eye on the concrete so no one would step it.
Of course, that's not the police department's job. And, it turns out, someone stepping in it was the least of the construction crew's problems.
See it all on this video from @the1stMikeC