Knight with a red armour....

I had a bad dream last night,someone was going to kill me with a knife and I woke up in the last minute before he stabbed me in my chest....When I opened my eyes there was a knight with a red Armour in my room,he was trying to kill me with a knife too.
But he disappeared when he saw that I was awake....
What would have happened if I hadn't woke up....???

(this is a true story...I did see a knight with a red Armour in my room.....)