It's mean to ridicule people.
Dave is at the office when he is introduced to a new coworker, Hank who is abnormaly short.
Dave wants to say something to Hank.
Dave tells Hank that he's welcome to come by his desk anytime he needs help.
Dave tells Hank that he is ridiculous looking and tiny like a Russian nesting doll.
Hank feels happy he's being welcomed by a new coworker and appreciates the offer of help.
Hank is sad and embarrassed and feels stressed out that he has to work with Dave.