A new pet fish

Throughout his life Rock had kept pet fish. He was at his grandmother's house in Nashville with a large gathering of people one afternoon when Chris and Erin appeared by surprise. Chris had a small fish, about the size, color, and shape of a minnow, in a translucent plastic cup. It was a gift for Rock.
Rock was pleased and spent a minute looking for a spare canning jar in the pantry by the kitchen. He covered the jar's bottom with marbles, then walked out through the screened back porch to a faucet on the west side of the house. He filled the jar and walked back through the porch and kitchen to his grandmother's large bedroom, which also served as the den.
While in the kitchen, Rock took a bite from a large smoked fish someone had bought.
Later, in the den, as Chris put the pet fish in the jar, Rock knew he would have to spit out the smoked fish. It tasted awful. He turned his head from the gathering and spit the black mush into his right palm and immediately heard sounds of disgust from his cousin Crutch's Aunt Nadene. Consequently, he walked out through the front door and tossed the chewed wad of fish from the porch into the yard.