On the Train Bridge

This evening, on a bridge that crosses the S-Bahn (local train) line in Prenzlauer Berg: A mother and two little kids, maybe 4 and 2, peering through/over the bridge railing.

"There, one's coming!" the mother said. The two little kids waved like mad, and just as the train passed under the bridge, it honked its horn.

"That's two!" the mom said delightedly. "We waved at two trains, and two trains honked! We've never had such good luck!"

And all three of them strolled off into the sunset.