You're right squid, there's always a risk involved. However, I'm not suggesting he keeps the plant on any longer. Some of the balls have already opened, just tapping those dangling bananas will more than likely drop some pollen. So I mean collecting some pollen just before spraying it off and putting a bag over its head and wipe it.
And no OP, apart from collecting pollen there's not much to gain. Buds are female sex organs, males don't produce mj buds.You have already wasted the time you put in it, best thing you can do at this point is stop wasting any more time on it.