Trying Times

How do you go from this:

To this:

From this:

To this:

Go on for a ride in the woods to wade in the creek, and (ten minutes after you get there) tell your mom you have to go potty.  And not just toilet-paper-preferable potty, but toilet-paper-imperative potty.  She will tell you it's time to go home.  Here is where the face comes in.  Your sister will pull a face too, because she doesn't have to go and won't understand your plight.  These are the "times that try the soul."