Drive honestly doesn't have many bad habits. I mean, he cries piteously to tell us he needs to go out. He cries piteously if he runs out of water, kibble, attention, space on the couch. He cries extra-piteously if the temperature dips too low in the house. But crying isn't a bad habit! It's how babies communicate, and it's how Drive conveys his every need or thought. If I look at him, tilt my head and say his name, he will sometimes get concerned and start whining. I'll have to get video of that.
But maybe digging through the recycling in the middle of the night to find the cardboard egg cartons he so dearly loves to shred and spit everywhere could be considered a bad habit.