Answer:
I'm an animal. I love marching. I always wear a tuxedo. What am I?
I eat I live.I breathe I live. I drink I die.
I run up and down the stairs without moving. What am I?
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?