[knowaveragejoe]

Actually, from my reading on the subject, they're required to stop what they're doing if they see any wildlife in the area. It's the same with other developed navies for the most part.

It doesn't always happen, but I got the impression that it does most of the time(and coincidentally is a source of frustration on their part as they have to wait for the wildlife to leave).

I can't seem to find the article I was reading about this, but in the comments there were a number of people claiming to be current or former members of various navies, and their responses were mostly along those lines. Some people said they willingly ignored those requirements, however.