Just have to add: BEWARE what you teach your dogs.
Once I taught Helmi to touch my nose with hers. Well, you never know how it ended

. I was watching tv, eating a sandwich and then suddenly saw something black and white approaching from the left, quickly touching my nose.. And run off, with my sandwich!!
On another occasion, I was eating popcorn and Helmi brought me a sock she had found. Without much thinking, I gave her one popcorn and took the sock. Well, she was very quick to learn. Now everytime I have popcorn popping in the microwave Helmi goes and collects a pile of socks (she opens the drawer and takes them from there). She wants to be ready when the popcorn comes out

.
Helmi is the naughtiest dog (and also the funniest and most clever one) I've ever owned and on many occasions I have been ready to take her back to her breeder (but then I realised I've bred the bloody thing myself) but I can only love her (you really shoud see the "wasn't me" faces she pulls).
Helmi is also very scilled in blaming others for the things she's done. Once I went to the living room, saw Helmi chewing on the remote control. When Helmi saw me she practically threw the remote to the sofa where Viggo was sleeping

and tried to look very innocent herself..