Considering tigers are slightly endangered, I’d argue that zoos shouldn’t be liable for people who intentionally enter an enclosure.
You approach a predator you get killed that’s the way of life
New sign at zoo, "If you enter enclosures with animals, you join their food chain. Whether it be above or below is up to you; but once you are in, you become zoo property."
"New species of primate discovered as it tried to climb into tiger cage at zoo. Was tranquilized, given medical check, and released into primate enclosure with gorillas."
You approach a predator you get killed that’s the way of life