Two ducks walk into a bar.
Two ducks walk down the sidewalk looking at their phones and not paying attention to what's in front of them. They walk into the bar of the comic strip drawn in front of them.
There was an old Donald Duck cartoon where Donald was walking down the sidewalk engaged in one of his typical low self-esteem internal dialogs when someone started yelling “Duck! Hey, Duck!” at him. Donald strode proudly down the street thinking, “Of course, I’m a duck! I’m a great duck! I’m —” and then plowed straight into an overhanging branch. The other guy says to him, “Hey, I tried to tell you: Duck!”