Wolfgang: What's in a name?

One of the things I most enjoy when abroad is savouring all the strange words and I must admit the men's name of Wolfgang always makes me smile. I think this Nineties Hess bodied NAW trolleybus in St Gallen is bound for the long departed Wolfgang's Hut or cabin perhaps? Surprisingly for a country that seems to have a complexity of laws and regulations somehow trolleybuses like trams don't need to carry registration numbers, and I suppose if someone jumped in the driver's seat and stole one they wouldn't get very far so there would be no need to scribble down the number.