Have had a breeding pair and two others. Sold one litter and traded the breeders off.
Karelians are independent minded and do not as a rule bring animals back to you. They will hold or at least try to hold what they are after in one spot by darting in and out. - that is why they are used flor bear hazing. I didn't personally get to work a bear with mine but moose that wandered into the yard got the treatment. That being said - don' get one if you want a dog to hang around and be a companion or want one to
obey your every command. They need lots of exercise and chasing a ball is not it.
Put the last one I had down for biting one of my grand children.
Glad to not have any around any more.