They are spooky, we once heard a huge commotion in the backyard (living in Perth then), so we check it out.
An big owl is sitting one of our trees, and all the local wildlife is going nuts. Sending out a freaky screeching, squabbling riot of noise, and all the neighbourhood dogs barking.
Daylight, and weird, it just left and all quiet again.
@reepbot , with your scenario, I would forget the drinking, however you cannot take him to sea.
Advise the senior officers your crewman is emotional over his father's death and needs time out.
He could be a danger to everyone if he is in a confined space and wigs out