so, I came to these conclusions:
lions are lazy, they don't do much, mostly sleep. They definitely don't attack people seating in jeeps;
Elephants are very very big and it's better not to annoy them. But they will never attack you just for nothing. If you in a car and the male elephant is walking towards you, switch the engine off and keep quite- it will pass by you thinking that your car is just a rock;
zebras are tough to photograph cause they are always on alert.