A marijuana retail and grow facility. (David Zalubowski/AP)

The Drug Enforcement Administration recently warned Colorado residents about the dangers posed by large-scale residential marijuana growing operations.

According to the DEA, these operations are becoming a bigger problem in recent years because of loopholes in Colorado's recreational and medical marijuana laws. But the DEA has been busting marijuana growing operations for decades.

In the early 2000s, for instance, the DEA's Seattle Field Division published a handy tip sheet titled "Signs your neighbor is running a marijuana grow operation." Washington voters approved a medical marijuana bill in 1998, and the DEA warned several years later that "marijuana grow operations are appearing on a frequent and accelerating basis in residential neighborhoods."

The Seattle DEA wanted residents to be on the alert. "Ask yourself: Do you know your neighbors?" the tip sheet implores. "Have you been inside their home or does something seem peculiar or different about their home? In order to deflect suspicion, it is not unusual for children to reside in homes being used to cultivate marijuana."

The tip sheet then offers a bulleted list of 15 signs your neighbors may actually be growing marijuana. The criteria listed are so broad -- foggy windows, sounds of hammering coming from the residence -- that it seems unlikely any residential home would be fully free of suspicion.

To that end, here's a fun little quiz, based on the DEA's criteria, that will tell you exactly how suspicious your own house is based on the number of DEA criteria you meet.

1

Andy Wong

Are your windows ever covered or blacked out, or are there windows you've never opened?

Yes!

Nope.

2

Matt McClain

Do your windows ever get foggy or steamy?

Yes!

Nope.

3

Evelyn Hockstein

Do your neighbors only visit sporadically, or not at all?

Yes!

Nope.

4

Kim Kyung-Hoon

Did you move into your home without furniture or belongings?

Yes!

Nope.

5

Jim Lo Scalzo

Do you often enter the house with groceries?

Yes!

Nope.

6

Jeff Chiu

Do you enter your home primarily through your garage?

Yes!

Nope.

7

Matt McClain

Do you ever have lots of visitors for a short amount of time? Or do you often have people waiting outside your house in their car?

Yes!

Nope.

8

Ricky Carioti

Are people ever seen entering your house with plastic sheeting, plant stocks, fertilizer bags, plastic piping, large amounts of potting soil or pots? Or are these items ever left outside?

Yes!

Nope.

9

Mary Pat Flaherty

Do people ever enter or leave your house with large heavy garbage bags?

Yes!

Nope.

10

Dayna Smith

Are there multiple water lines and/or electrical cords running into your residence?

Yes!

Nope.

11

Barbara Sax

Is there an unusual odor emitting from your residence similar to a "skunk" smell?

Yes!

Nope.

12

Sarah L. Voisin

Are there ever unusual amounts of steam coming from your vents?

Yes!

lol nope.

13

Marcus Yam

Do you ever forget to pick up your mail and/or your garbage?

Yes!

Nope.

14

Mark Lennihan

Are there very bright lights in your house not consistent with home lighting?

Yes!

Nope.

15

Luke Sharrett

Are there ever humming sounds, hammering or drilling coming from your residence?

Yes!

Nope.

More from Wonkblog:

An Oregon teen is facing federal drug charges over a single gram of marijuana

Legal marijuana is finally doing what the drug war couldn't

Chronic marijuana use is about as bad for your health as not flossing