Slept in way late, read. Over the afternoon, I went searching for a 1 km length of the Berlin wall that's supposed to still stand near the Hbf station in East Berlin. Looked until sunset, but never found it.
Did the email thing. On my way back to the hostel I didn't buy a ticket for the STrain, because all I had was a 50 DM note and I didn't want a pocket full of shrapnel. Besides everyone I've talked to says they never check (the hostel workers, the guide book, guests staying at the hostel, etc.) Up until now I've alway bought the ticket (3.60 DM isn't that expensive, and I am riding the train). Excuses, excuses, tonight I learned they DO check tickets. Much explaining and 60 DM later I got home.