Advice-Fights that you don't even know how they started

Hey guys Eva here with some advice on if your in a fight with someone but you don't even know how they started o.o. So your sitting there talking and then suddenly you say something and the other person starts yelling or something and your just like what?? what did i do to you?!?!? or watevs. Well if that happens to you heres what to do XD. Be the one who doesn't carry it on stop and just say watevs lets just forget this happened or go off topic. Don't let a silly little fight ruin an amazing friendship. Do you really wanna loose an amazing friend over something so so small? Don't let something like this get to you it's a little fight if your friend is really true and you know they're really true you'll both know that your not gonna let something like this ruin your friendship. And trust me by the next day you'll be sure to be friends again.