It's the suicidal mood that lets me get rid of stuff I used to store at home, although I never use them. It's also the mood that let's me say something to some girl that I'd never say in my other moods. It also lets me make crazy decisions and take uncalculated risks.
The suicidal mood is like courage pills, it makes me ready to fight dragons with my bare hands. And the good news here is that I never regret what I've done during that mood, on the contrary, I like the insane actions I do then, may be because I myself am insane.
Just remember that you have to fight fire with fire, and life itself is crazy, so you have to fight it every now and then with craziness.