I’ve enjoyed success grafting, but I cannot claim credit. Speed is a factor for certain. If you can seal the wound immediately after it occurs you have a much higher rate of success. If the branch has had air in its cell walls and begun to dry out, there is little hope.
Pets love cannabis and it’s good for them. Give them their own plant they know is ok to chew, and gently scold them if they’re in your good garden, and return them to their plant. My cats know which plants they can eat and which I don’t permit (separate rooms or they wouldn’t behave). They’re still rascals sometimes but usually good about it. I grow wheat grass and cannabis for them.