Yesterday alone, Massey returned 15 pairs of shoes to their rightful owners and within a matter of months, Cooper has managed to wrangle more than 100 shoes in total.
So much so, Massey has put up a sign at the local Four Square to let the community know their missing pumps are likely at her house.
On a daily basis, Massey receives calls and messages from victims who come over to collect their shoes and usually leave with at least three extra pairs.
The 3-year-old Burmese ragdoll is nothing if not classy and only steals branded shoes in pairs including Timberlands, Nikes and steel-capped gumboots.
Massey said he used to bring home nail gun strips, full bags of nails and even resident's house build plans before shoes caught his eye.
Luckily for some Lakes residents, the Masseys along with Cooper are moving in the coming months.
Their new house is in Te Puna, a semi-rural area.
Massey does not believe this will be any match for the sneaky cat, but hopes the rural setting will deter him from shoes.
It did not go without worry about what he may dig up out there though.
"What on Earth is he going to manage to bring home out there?"
Funnily enough, Cooper also has a twin brother Monty, who lives with him.
One would assume the two would be quite the troublesome duo, yet this is not the case at all. Monty prefers to slink around the house, not the streets.