The alley snails tried to become friends with Gary, but he was scared by their intimidating appearance. However, they thought it was because Gary did not want any nachos.
Near the end of the episode, when Gary tries to escape from Granny after discovering that she eats snails, Gary runs toward the alley and pushes the green snail in the middle of the sidewalk in an attempt to avoid being eaten. Granny picks this snail up, assuming him to be Miss Tuffsy, to which the snail questions "Who?"
In the online game Trail of the Snail, the gray snail from the group is called "Old Snail" during level 6.