Wikipedia
Caught Short
Caught Short is a 1930 American Pre-Code comedy film directed by Charles Reisner and written by Robert E. Hopkins, Joseph H. Johnson and Willard Mack. The film stars Marie Dressler, Polly Moran, Anita Page, Charles Morton and Thomas Conlin. The film was released on May 10, 1930, by Metro-Goldwyn-Mayer.
Usage examples of "caught short".
His bag of tricks contained assorted hats, eyeglasses, jackets, a reversible raincoat, a hard hat, a small hand mirror for over-the-shoulder observation, and a quart-size empty plastic jug in case he got caught short and had to pee.