Oh, I read Rex and Claire debating on PKMN.net one day, and one thing they'd say outside of there is "I disagree with your views!" and I've been wanting to make it ever since. I just never knew when the proper time was.
I got in a "heated" discussion just yesterday about a poorly-written opinion article about how anime has corrupted American society. I couldn't necessarily disagree with the guy either, even if he "didn't have all his facts correct."