a bug or feature? when you attach a hook to a heavy object like the atv to a vending machine the machine magically gets lighter, and can cause deaths
Viewing post in Voices of the Void 0.8.1 Bug Reports
I believe it was present in previous versions. Probably some object have more "mass" than others which is a deciding factor in what gets pulled and whats not. I just use it to move heavy/unliftable objects around. In your case, the atv is more "massive" than a vending machine and this is why the machine is getting pulled instead of atv.