i would tell them. i would say "a cat got in our dog run & the dogs killed it." i don't know if it's yours or not.
that way they don't find out the hard way & have hard feelings. they know right up front that the cat made a fatal mistake. it happens. they can't blame you and they can't blame the dogs.
that way they don't find out the hard way & have hard feelings. they know right up front that the cat made a fatal mistake. it happens. they can't blame you and they can't blame the dogs.