"the phone rang in the middle of the night when i was sleeping, i couldn't see where i was going, i just ran outside the room, then i tripped over my briefcase and hit my head on the doorknob. Later, I found out it was only some dude who dial the wrong number. I screamed at him, and hung up, i guess it was karma, i tripped over the briefcase again, and got another bruise on my head. Believe it or not, this is the truth"
By the way, roll some boiled egg on your forehead, it should heal really fast, if it wasn't too serious. or put makeup on it to cover it up