It turns out Justin Long’s performance in 2007’s Live Free or Die Hard was more dangerous than previously thought, because, aside from all the car chases, he also successfully pranked Bruce Willis. And, just to warn you, it is actually pretty gross. Long shared with PeopleTV the moment during a chase sequence when the actors both had to stay in a car that was being spun around. Willis offered Long some advice before they started, telling the young actor in his very Bruce Willis way: “Hey kid, you’re going to want to have some Dramamine because it’s going to be a bumpy ride.” This gave Long the idea to have a PA bring him a cup of oatmeal that he sneakily drank after the take, but while the camera was still rolling. Then, when Willis asked him how he was feeling, Long interrupted him by spewing oatmeal all over himself. “I’ve never seen John McClane panic, because he doesn’t panic in the movies, but he fucking panicked,” said Long. So now we know John McClane’s weakness: oatmeal vomit. Hopefully no Grubers are reading this.