Oh man, DB has one of the worst experiences in my well traveled history.

If you don't buy a seat, you don't get a seat. I was taking the 4am train 8 hours from Brussels to Berlin, and I bought seats for both legs of the trip. To sleep, of course.

The first leg of the trip was delayed, so they gave me a free ticket on the next train, 40 minutes later, but with no seat.

So, exhausted as all hell and wanting nothing more than a little nap, I was forced to stand in one of the hallways between the carriages, unable to rest much even vertically because people had to push past me to get to the bathroom.

Absolutely horrid experience.