Happy Birthday, Mr. Fluffles

Mr. Fluffles was born in early May 1994, which makes him 15 years old this month and the equivalent of age 76 in human years.
He’s in pretty good shape: uses his litter box faithfully, can run up the stairs, and can jump reasonable heights. Except for morning stiffness, he’s a lot more agile than I am, even though in human years, I’m considerably younger than he is.