Second and final two shorts to portray Mickey with buck teeth.
When Mickey is preparing intensely to swing his club, the soundtrack plays a snippet of the 1936 swing standard Sing Sing Sing. The song's composer Louis Prima starred as King Louie of the Monkeys in El libro de la selva (1967), one of the final films which Walt Disney was personally involved in.
"Canine Caddy" from 1941 is the second and final Cartoon where Mickey has buck teeth, the first was the 1941 Mickey Mouse Cartoon "El pequeño remolino (1941)", which established unique short-lived redesigns for Mickey and Minnie including the changes of a slimmer body, perspective ears and a bigger head, hands and feet as well as the absence of a tail, which Mickey still had in his usual red shorts until the next Cartoon "A Gentleman's Gentleman (1941)", where he is shown laying in bed, so it wouldn't be seen anyways, and in "Canine Caddy" from 1941 it is first seen in effect. Part of the redesign was that Mickey was also given buck teeth (Minnie apparently also got this addition, although it was never shown in any Cartoon), which were only shown in "The Little Whirlwind" from 1941, when Mickey was whistling, and for the second and final time in "Canine Caddy" from 1941, where it is shown three times in total, though not while whistling, but while talking, when he takes a hit. The buck teeth were only shown in these two Cartoons and the overall unique short-lived Designs would last until the 1946 Mickey Mouse Cartoon "Squatter's Rights (1946)".
The unnamed Gopher appears for the first time in the 1941 Mickey Mouse Cartoon "Canine Caddy". He is a precursor of "Chip and Dale", but with less personality. He undermines the actions of various characters in the "Mickey Mouse", "Donald Duck", and "Pluto" animated shorts: the Mickey Mouse Cartoon "Canine Caddy" from 1941, the 1942 Donald Duck Cartoon "Donald's Garden (1942)", and the two Pluto Cartoons: "El ladrón de huesos (1948)" from 1948 and "Pluto y el topo (1950)" from 1950, in his final appearance. "James MacDonald" voiced the Gopher twice; in the 1942 Donald Duck Cartoon "Donald's Garden", and the 1948 Pluto Cartoon "Bone Bandit", he also voiced Chip in the period of 1943-1960.
The second Cartoon from Disney having Golf as it's theme. The first was the previous 1939 Donald Duck Cartoon "Donald juega al golf (1938)", and later the 1944 Goofy Cartoon "How to Play Golf (1944)", which makes Golf a sport that the trio: Mickey, Donald, Goofy all played, as well as Huey, Dewey, Louie and Pluto participated in.