What I usually do if prices are falling most specially if the coins are very low, I would buy more coins from a much lower price and your total amount of couns would then be divided; the result would be lesser losses. Read or research on google about books or ebooks on trading.
As a newbie in joining a bounty campaign, I don't know exactly what to do when the price of bitcoin is falling. Maybe I should get some help from my friends who are into bitcoin in a very long time, maybe some advice from them will help.
Or maybe I should do some researches on how to deal with it.