Answer:
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
The weapon of choice to create the biggest shock.
What breaks on the water but never on the land?
What contains zero calories, but if you consume it, you will probably gain weight?
What force and strength cannot get through. I, with a gentle touch, can do. Many in the street would stand. Were I not a friend at hand.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.