From the Imperial Valley Press:
“The IID [Imperial Irrigation District] launched a safety program in 1959 to instill in children a sense of fear and respect of the Valley’s canals.
“The program is based on a cartoon mascot named Dippy Duck. The district reinforces the idea that canals are dangerous through presentations each spring in preschools and elementary schools. By the time students reach sixth grade, they’ve heard the message several times.”