In "The Secret Life of Walter Mitty," name some examples of Mitty's letting other people tell him what to.

In "The Secret Life of Walter Mitty," the main cause of Mitty's daydreams is his domineering wife, who demeans and orders him constantly:  "Remember to get those overshoes while I'm having my hair done...You're not a young man any longer," etc.  In another instance, Mrs. Mitty makes him drive to a garage to have the snow chains removed.  When Mitty tried before to do the task himself, a "young grinning garageman" had to come and unwind the tangled chains from Mitty's car's axles. 

In addition to the gargeman, the "cop" barks at Mitty after he lets his wife out of the car:  "Pick it up, brother!" he snaps. Then, as Mitty enters the parking lot, an attendant yells at him, "Back it up, Mac!  Look out for that Buick!"  Angered at Mitty's poor driving, the attendant tells Mitty, I'll put her away."  The attendant valts into the car and "backs it up with insolent skill, and puts it where it belongs."

As Mitty tries to remind himself to buy dog biscuits, he repeats, "Puppy biscuit."  A passing woman laughs, telling her friend, "He said 'Puppy biscuit....That man said 'Puppy biscuit' to himself."  Finally Mrs. Mitty returns to scold her husband more:  "Why do you have to hide in this old chair?"  When Mitty attempts to assert himself by saying that he is "thinking," Mrs. Mitty looks at him and says, "I'm toing to take your temperature when I get you home," as though he is a feverish child.  Poor Mitty retreats into another daydream.