I have also!! In my case, it was with my first Doberman, Duke (although I would love to try it now with Buddy, for sure!)
Duke was very attached to me, borderline anxiety separation, but thankfully not to any extent. He did not tear things up, did not whine excessively, and could be left alone without a problem. But we were attached at the hip, for sure.
If we were all outside and I went inside alone and later the rest of the family and Duke came in, he would race through the house like a madman trying to find me! It got to be fun for me to hide and have him find me! He Always did!! Always. And I would stay hidden until he would bark, alerting the family where I was and they would come and open the door to where I was (usually a closet! lol ) I always told my husband that if something happened to me, all he had to do was ask Duke, "Where's Mom?" That dog knew all of our names! Me:Mom Hubby

addy and he knew the kids
by name! That's how it is with kids in the house. Now with no kids at home anymore we don't say that!

We will never forget sitting around and I asked Duke, "Where's (my daughter's name)" Like in slow motion, he slowly turned to look at her!! It was the funniest thing ever!! And she was not home that much before of college, so we were amazed that he knew and recognized her name!
Later, I got the idea that I would LOVE to see if Duke could tell if someone 'different' was in the house! An intruder! I wanted to see if we all left the house and had someone that he never met before, come in and hide. Would he be able to tell instantly when he went in the house? and would he seek him/her out?
But, I'll be damned if I could find a 'subject' for my experiment!!!





sh*ts