I want to know the answer to the following question:
What was  Athanasius doing when he was arrested?
All the background I'm provided with is that "For two years Liberius had been favourable to the cause of Athanasius; but driven at last into exile, he was induced to sign an ambiguous formula, from which the great Nicene text, the "homoousion", had been studiously omitted.". Is that enough to answer the question?
Answer: no