ahhh fallacies

You know i think everyone inadvertantly, or i guess on purpose (for some of the more conniving people) use fallacies. I do it without even thinking about it. I commonly make appeal to tradition and appeal to masses arguments to friends while debating, or arguing. Luckily they don't know it is a fallacy, but everyone tends to use them. Why do we do it unknowingly? Is it just us trying to win our argument? I would think i would stop using them, now that i can define them, and that i know they aren't real facts or complete reasoning. But i just can't seem to help it, in the midst of the argument, they just slip out. Does everyone do this or is it just me?