Let's see . . .
Brown Sugar (puppy) was overcome by ticks and died.
Kitty Blackie ran away never to be seen again, in a town the size of a postage stamp.
Licorice (dog) died of Parvo.
Pudge (puppy) ran over by car.
Cadbury (bunny rabbit) escaped, never to be seen again, in a town the size of a postage stamp.
Leo (leopard gecko) ate bark from tank and had intestinal explosion.
Kaiser (leopard gecko) stopped eating after Leo died. Starved to death.
Whopper (betta fish) freaked out in tank and died for unknown reason.
Obie (betta fish) likewise freaked out and died for unknown reason.
*Not a comprehensive list*