This morning at 5:50 am the driver of Aircoach bus drived a bus extreemly unsafely approaching Drumcondra from N1 side. He changed lanes as he was the only vehicle on the road. At one point he made me to drive on a opposite side as I couldn't continue to drive on my own. At the same time the opposite traffic was approaching. This was an extreeme situation that barely finished dramatically. Despite I used a horn he did the same two lights after and nearly hit my car from the passenger's side. This way of driving is unacceptable!!! The number plate is 142 - D - 15749. (C15)