Are you referring to the serpent that talked?
I wasn’t being specific, just observing that, in order for something to disobey God, I think he would logically have to first create something with the ability to choose to obey or disobey Him.
You do understand that the 'serpent' was not an actual snake, but was a representation of what was 'within' mankind?
Take any human, and tell them they cannot do something. See what happens.