William and I manage a storage facility...and we allow the Sheriff's dept. to train their K-9 sniffers here. Today, there are cop cars EVERYWHERE on these 10 acres, they're doing a state training, and we'll have about 40 dogs running around sniffing everything! :)
These are such neat dogs...the trainers tell us that the dogs are playing a game...even what they refer to as the "perp dogs" (the dogs that chase down offenders and knock them down) are just playing games. It's hide and seek to the dog, and they get to play with a favorite toy when they do a good job.
We've found that it keeps drugs out of our facility, which in bigger areas has evidently become a prime choice for those that want to have a "crack kitchen"... keeps it out of their homes. Have actually had potential customers leave when they find out that we have drug dogs training here! :)