Florine McKinney spanked - Sing, Bing, Sing (1933)

Florine McKinney plays the sweetheart of Bing Crosby who is banned by her father from dating him in the short film "Sing, Bing, Sing" from 1933 (Had he heard him sing?). In this clip she decides to try to escape, but father dear has been tapping the phone and is lying in wait for her as she creeps through the window at the top of the door. Even more embarrassingly she gets her braces caught sliding down, ending up cocooned as she is confronted by her father, who spanks her. To compound the humiliation, she's sent back in her room and her trousers drop down, leaving her standing in just her underwear. Caught with her trousers down literally!