no way. Happy is perfect off leash, and bahaves just as well for my best friend as with me, because my best friend is practicly her second mom, yet when she is dogsitting for me, I keep in in a collar with tags, and I ask that she keep Happy leashed. I dont trust that my friend can handle Happy when she see's a strange dog, I cant garantee that if Happy ran accross the street in exitment that she would drop to the ground on the other side of the street and wait, if I am not around. I let Steph walk Misty and Ripley because I know she can handle the pulling, I know because she has a 100lbs golden retreiver that pulls like crazy, and she will often when we walk all 3 together, take my Misty and Dakota in 1 hand and run with them, thats 137lbs dragging her down the street, and she has never lost grip. because of that she is the only one I trust with my pullers, and I trust her to be able to hold Happy back when she is leashed. however just as I dont trust most people with my dogs, I dont trust myself with their dogs either, when I take Perky for walks, I never let her off the leash, even though she has NEVER tried to take off, she sticks closer then my own dogs do, however I cant garantee that she will listen to me without my mom there, when I watch dakota, I will walk him on leash, but I never take him off, even though he is safe off leash, and listens to me better then he listens to his own mom, I dont want to be responsable if something ever happend to him, the only dogs I trust myself with, are my dogs, and I dont trust others with my dogs either.