As Jam appeared on the market in those days, he also loved Jam so badly that he ate it every day and was advised by the doctor to stop that (there is a description that Mister Kushami eats eight cans of Jam a month in "Wagahai wa neko dearu").
当時出回り始めたジャムもお気に入りで毎日のように舐め、医師に止められるほどだったという（「吾輩は-」には1ヶ月に8缶も舐めたとの記述がある）。