Twitter’s all abuzz with unpopular opinions, and we have another Hashtag Roundupto thank for it. Last night’s game dared Twitter users to «start an argument in 4 words» and people are seriously coming through. We’ve got people praising pineapple on pizza, claiming the Earth is flat, and hot dogs are sandwiches. Needless to say, these are definitely all fighting words. We’ve put together some of the spiciest 4 wordfire starters, but please add your own in the comments. We can’t get enough of this game and we’re sure there are some controversial sentences we’re missing.