Dream turned into reality?

i had a dream in which i and two of my friends were walking in a forest. I was about to place my feet on a snake but saw it just on time and took my feet back. One of my friend placed his feet on the snake.dream ended and then i woke up at 5 am in the morning. At 9 am on the same day i got a call. The friend who placed his feet on the snake in my dream had met with an accident and got his leg fractured.i remember tat when i took my feet back (in the dream)the snake came back too as if it wanted me to place my feet on it. So i am like scared if something bad is waiting for me to happen. It might be a coincidence too. Anyone had any experiences like these? I usually get to see a lot of snakes in my dreams. Y is it so?