The silver backed looking for more food

While we were observing the group of gorillas i took some photos. I didn't see the silver back ,he was'nt with them. Suddenly i was shaken like a rag doll.It was the silver back; i was just in the middle of his path! He wanted me to get out of the way. He only wanted to push me aside, he wishedme no harm. Ididn't feel like challenging him!!!