I believe who claims that they had never been depressed before must either be lying or just, well, too happy-go-lucky to even have one.
I'm not here to spread depression and all, but my question is, have you regretted being depressed over something?
I have. I regretted being depressed when I had a big brawl with my now-ex-best-friend which I had lost contact with. I regret being depressed when my mom got sick, for not being able to do nothing.
Seriously, I think this a topic we all have to face.