Dog Shy is a 1926 American two-reel silent comedy film starring Charley Chase.
[1] Chase plays a young man with a fear of dogs.
After being chased by one, he enters a phone booth and a young lady tells him her trouble: she is being pressured into marrying a wealthy duke against her wishes.
After a series of hilarious misunderstandings and disasters, Chase is recognized as a hero and enjoys a happy ending.
[2] Media related to Dog Shy at Wikimedia Commons