Sure, there's a primal response to seeing something go up in flames, but it has about as much to do with the day-to-day ordeal of being a human being as that uncomfortable feeling you get when you have to pee and there's no toilet nearby.

CNN: 'Lethal Weapon 4': Saying nothing, but loudly

"When they get scared, they pee themselves, " Mr. Henen said, referring to the tortoises.

WSJ: An Army of Biologists Are on Nature Patrol at Military Bases

Film stars aren't always the best judge of when it to call it a day, and you might fear the worst as Eastwood grouses about his pee in the first scene.

CNN: STORY HIGHLIGHTS