blueluke

I am pretty sure I saw a video once of a player receiving the ball from the scrum half after a scrum and the running over the back of the scrum while it was still set. He got tackled and I don't remember the referee blowing up but regardless I would like to know:
1- Has this happened (or can this legally happen) or did I just dream it (let's face it it's prety awesome)
2- Can someone direct me to a video of it?

Thanks