[ Five frowns at that, but he doesn't immediately speak as he thinks things over. He's not without fear for their situation but he's pragmatic enough to know that he's going to have to take some risks if he wants some answers. ]

At some point you will have to decide what is an acceptable risk to take around here. Some times calculated risks are going to be needed to get any where.

[ Which means he's not going to give Aziraphale a hard time for not investigating, but he hopes he will change his mind at some point.]