premise: And although a lover she would bite you when she felt she was done being petted . We euthanized her , but probably waited too long because it was really hard to do . cat 2 : Trixie ( followed 6 months later ) died at age 6 also , from a heart attack from the vacuum - no joke ! ! cat 3 : Ninja ( four years later ) died AGAIN at age 6 from kidney failure ( after lots of visits , home IV fluids , change if diet ) . What 's a possible reason why a vacuum cleaner caused the cat to have a heart attack ?
hypothesis: Because she was done being petted .