Get me off this train

One day a man took the train from Paris to Frankfurt. When he got in he said to the ticket man:
"Sir. I really need you to do me a favor, I have to get down this train in Mannheim, but I'm very tired and it is for sure that I will fall asleep. So what I want you to do is that you wake me up in Mannheim because I have to close a business there and it is very important for me. Here you have 100 francs for the favor. But I warn you sometimes when people wake me up I get really violent, but no matters what I do or say you got to get me out of this train in Mannheim. Is that clear?"
So the ticket man agreed and took the 100 francs. Later as the man had said he fall asleep, and when he woke up he realized that he was in Frankfurt. He was so mad at the ticket man that he ran over and started yelling at the ticket man.
"Are you stupid or something??? I paid you 100 francs so that you wake me up in Mannheim. And you didn't, so I want my money back!"
While the man was yelling at the ticket guy, two other guys that were also in the train were looking at them, so one turns to the other and says to him:
Man 1: "Look at this guy! He is mad!"
Man 2: "Yeah! He's almost as mad as the guy they made get out of the train in Mannheim."