One memorable encounter occurred while Ligocki was visiting Germany the summer after his sophomore year, when he took a side trip to Berlin to meet up with Marxen. “We got through the language barrier through the medium of busy beavers,” he said. The medium of beer also helped. Ligocki ended up having too many and missed his train back to Hamburg. The busy beaver bug stuck with Ligocki throughout college, but when he graduated and found a job, life got in the way. He returned to the hunt from ti...