Mashed potatoes

As Rock rummaged through a display of golf shorts at a department store, he noticed that Russian premier Vladimir Putin was at the opposite end of the same display, five feet to his left.
"You should check these down here," Putin said to him. "They are a very low priced."
"Thanks, I'll give them a look," Rock said.
Rock next walked from the store directly into his maternal grandmother's house. It did not seem at all odd to him that the two were connected. He sat at the dining room table with his grandmother, his mother, and his mother's identical twin sister Jean.
His grandmother put a large serving of mashed potatoes in a bowl in front of Rock, and then smothered it in cream gravy, but just before Rock dug in, his mother picked up an entire stick of butter from a butter dish and dropped it with her hand directly into the middle of Rock's potatoes.
"Mom, why did you do that?" said Rock as he used a fork to remove the butter. "It seems like something an insane person would do."