Because of trains! Because of the damn trains! Damn 'em!
6 seconds sound clip from the For a Few Dollars More movie soundboard.
You can hear this line at 00:51:59.875 in the Blu-ray version of the movie.
Quote context
[...]
- Well, why didn't you tell me that in the first place, my boy?
- Of course I know the man you're trying to find out about. Of course I know him.
- A great soldier. Now he's reduced to being a bounty killer, same as you.
- Because of trains! Because of the damn trains! Damn 'em!
- Take it to the station. The gentleman's leavin'.
[...]