Marshall's team, as a result of being independent, experienced several lulls during missions. Periods where there was no new information but nobody could properly rest. With the exception of one.

Felix took the "Worrying changes nothing." approach. He had a more even work-play balance and it was play time.

He'd been holed up in his room most of the day tinkering with something, as always, but you didn't know what is was.

Eventually you got too intrigued and knocked. From the other side of the door came and frustrated "Come in." Felix had a radio in his hands and was visibly annoyed, grumbling this and that in German.