Okay, just try to get a general feel.
Let's say you're at an exotic dive trip, and the chances of coming back is almost none. You're at the last few dives of the vacation, and encounter unique marine life to the region, and it's getting swimming away. You have a split second to make a decision: "If I don't go after it, I may not see it again".
I know constantly chasing a sea creature is a very amateur move and often frown upon as it scare them away so other divers won't have the chance to see them. But I'm wondering at what point, would you go after them? If you let them be where they were at, do you wait for 5 minutes, 10 minutes etc. hoping they will get close to you. Or you would just swim away to join the dive group?
I'm interested to hear what majority of you did to get good result, and be a better UW photographer/videographer.