Minotaurs of Mars

You go to the front door and your little brother sees you and screams: "Moooooom!!! Y/N has a sword" you can't believe your little brother it's really obvious that it isn't a real sword. You try to bend the sword to prove a point but to your surprise The sword doesn't budge not only that trying to bend it gave you a cut on your finger. But how could a foam sword cut you?!! You hear your mom go down the steps and look at you with unkempt fury. "Where did you get a sword!!!" She screamed you have to escape her but how?