Lots of Minnesotans are car slobs.

When we asked readers, "Do you or somebody you know drive a junk-filled car, a mess on wheels?" we heard from them:

"Hi, my name is Jolene, and I'm a dumpster driver," wrote Jolene Koch, Pine City, Minn.

Also from their friends, siblings and spouses:

"My wife drives the ultimate mess on wheels. She proves daily that it is possible to put 10 pounds of stuff in a 5-pound container," said Frank Mammen.

Parents outed their offspring, as did Nancy Autio: "My daughter has the trashiest car on earth."

Offspring tattled on their parents: "Dad could grow potatoes on the floor boards," wrote Adam Barlau, of Edina.

Co-workers ratted on each other, supplying the location, date and times to view the offending vehicle. A surprising number of real estate agents owned up to their overflowing, messy cars, and a Catholic priest apparently needs absolution.

"I open the door, books, papers, soda cans, parking tickets, fast-food wrappers and other assorted articles spill out," wrote John West of the car belonging to his friend, a man of the cloth. "My feet rest on a pile of junk as we drive."

No matter who's reporting, however, the description is about the same: stuff crammed in, covering the floor, filling the back seat, spilling into the front and piling up to the windows. It's a jumbled mess of wrappers, pop cans, coffee cups, papers, tools, banana peels, apple cores, books, boots, bats, balls, uniforms, clean clothes, dirty clothes, unmatched shoes, laptop computers, fast-food bags and candy bars.

It's everything but the kitchen sink -- although we learned that at least one car carries a wash basin; another a toilet plunger.

Drivers of these rolling garbage cans defend themselves, explaining that they work out of their car, are too busy or have lots of kid activities. Or, they just might need it, as in the case of the retired archaeologist who drags along the shovels, tent, all the tools of the trade -- just in case.

But a littered car doesn't mean clean it or no-sale.

Paula Ponsonby's boyfriend, the driver of a series of dumpster cars dubbed the Abyss 1, 2 and 3, "sold Abyss 2 with all the stuff in it."

Can all this disorder actually be a disorder? One special education specialist thinks so. She suspects that drivers have undiagnosed Attention Deficit/Attention Deficit-Hyperactive Disorder (AD/ADHD). She notes that many AD/ADHD students have major problems with organization.

But we should be careful about jumping to conclusions. Some drivers of junk-filled cars are fastidiously clean and orderly in their homes, at school or on the job.

Nor it is just another form of hoarding, behavior that produces junk houses where tunnels cut through mounds of clutter. According to Dr. Suck Won Kim, a professor of psychiatry at the University of Minnesota, hoarding is often associated with impulse control disorders or obsessive-compulsive disorders, and they may not be behind the junk-filled cars. There are many reasons why they do what they do, he said.

No matter the reason, however, operating a cluttermobile has some real drawbacks.