Matinee idol Freddie Prinze Jr. won't dish about his impending nuptials to Buffy the Vampire Slayer's Sarah Michelle Gellar "We never talk about the personal stuff" but ask him about setside horseplay on his baseball flick, Summer Catch (opening Friday), and you'll get an earful! Let's just say, the 25-year-old gives new meaning to the term "man-child."
Having heard about the pranks Prinze pulled on previous co-stars Julia Stiles and Claire Forlani, Catch's Jessica Biel (7th Heaven) was ready to rumble. "Believe me, I was in the mindset that I was going to get water on my head or mud somewhere but he didn't do one thing to me," a disappointed Biel tells TV Guide Online. "Maybe he knew I would retaliate somehow."
Indeed, Prinze has learned it's better to choose his battles. "I try to take it easy on the girls now," he says. "I get the guys. I have more fun doing that."
Of course, that depends on your idea of "fun." After a long night of shooting on the baseball diamond, Prinze reveals that he attached an athlete's electric muscle stimulator to co-star Jed Rhein's leg while he was sound asleep. "I turned it on and his leg twitched a little bit, but he didn't wake up," Prinze gleefully recalls. "So I turned it up more, and his face starts twitching. I'm hysterical laughing and laughing loudly and he's not waking up. So I crank it up, and his whole body starts shaking and he just freaks! He's running around screaming at me, 'I dreamt I was dying!'"Rhein shook off the shock treatment, but gave Prinze the cold shoulder for three days afterward. "I did a couple of other [pranks], but that was the funniest," he admits. "But Jed didn't like it." Note to fiancée Sarah: Keep a close eye on the household appliances.