Public Transportation as an Outing

With our niece, we rode all forms of public transportation in Berlin yesterday for our special outing with her. No sooner than we got around the corner on the tram was there a passenger with the DTs whom a policewoman accompanied to the driver up front where we were to have him wait until an ambulance could come. Lea, highly interested and a bit nervous at first, remained calm when we told her it's good to know people will take care of you if something happens on the train and it's ok to wait for the shaking man to be taken to the hospital.
From the S-Bahn station Bornholmer Str., we then went to Unter den Linden and came out so she could see why the surface train has to be in a tunnel in the middle of the city and there at the Brandenburg Gate the first marathon participants were coming through to the finish line, so she got a whiff of all that and a baloon from some people advertising something. At York Str. station, we came out again to the street where the big mass of runners was passing by and she could hear and watch everyone cheering for their relatives to pass. On the train, there was another strange passenger, a nut case yelling at everybody, but in the end doing no harm.
And on and on it went, as we found out from her mom later, to Lea's absolute enjoyment and edification. "How do you guys know about everything." We like learning new things, just like you do, was our answer...