On the Wrong Trek is a 1936 short film starring Charley Chase, directed by Harold Law, produced by Hal Roach and distributed by MGM.
In trying to help stalled motorist Clarence Wilson, Chase accidentally pushes his car over a cliff.
Then "friendly hitchhikers" steal their car and belongings, and force the Chase's to switch clothes with them.
The arrived in a hobo camp and are welcomed with open arms, and it becomes the only part of their vacation they actually enjoy.
Charley remarks that they look like horse thieves, drives by and scratches the top of his head in the same way that Stan does in all of his films.