Freddie Prinze Jr. stopped by The Tonight Show on Tuesday and reminded everyone why he was once their biggest crush in the late '90s. The dad of two was promoting his new cookbook, Back to the Kitchen, but while chatting with host Jimmy Fallon, he steered the conversation to a hilarious and drunken night he spent in London with pal Chris Klein when they were in their 20s. Freddie explained that after having a few too many drinks, the two friends, who costarred in 2007's New York City Serenade, got into an elevator with a British man who questioned their American accents. Long story short, Chris followed the man and ended up throwing him in a river in the middle of Winter. We have a feeling that his American Pie character, Chris"Oz" Ostreicher, would have done the exact same thing.