Properly trained, though, they will stop when the owner indicates that the person at the door is welcome and not a threat. Schnauzers are generally intelligent and learn quickly. Many have excelled in formal obedience trials. They are seen more and more in agility competitions also. Miniature Schnauzers are eligible to participate in Earthdog Trials and some excel at them.
Schnauzers shed very little.
They tend to cause fewer and less severe reactions in people allergic to dogs than breeds that shed more. Of course, anyone allergic to dogs should spend time around the breed before buying a Schnauzer because individual reactions vary widely. Miniature Schnauzers should be groomed every five to eight weeks to look their best. This is something most people choose to let a professional do, but some choose to learn to do it themselves. They do need to have at least a weekly brushing out of the beard and leg furnishings and may be bathed as often as weekly.