CHEBOYGAN COUNTY, MI - Two bystanders who took the keys away from a drunken woman they found passed out in her car in a ditch told police they were only trying to help.

But instead of thanks, one of them got slapped.

The episode unfolded about 5 p.m. Thursday in a ditch along Kate Hanson Road in Cheboygan County. It ended with a 71-year-old woman being arrested for drunken driving and having a blood-alcohol level more than three times the legal limit, according to an UpNorthLive report.

After Michigan State Police got a call about a car in a ditch, troopers responded and talked to two people who said they'd tried to take the woman's keys away from her, not realizing she had another pair.

The woman then put the car in reverse and backed into a tree, according to the news site.

In Michigan, a motorist is considered drunk if their blood-alcohol level is 0.08. The "super drunk" designation is for drivers whose blood-alcohol level is 0.17 or higher.