Scars are Souvenirs You Never Lose

Why do we pick at scabs? Why can't we just let things heal and move on? Is it because they itch and we just want to scratch them to find some comfort?

When do you know to just walk away from something -- a job, a lover, a parent, a cigarette -- before it becomes totally dysfunctional?

Funny thing is, the more you pick at a scab, the more likely it is to leave a scar. If it just heals naturally, odds are the mark that's left behind won't be too noticeable, if at all. But the more you pick, the deeper the scar.

Maybe it's because, in some twisted way, scars can last forever, reminders of what was once there. If it heals without scarring, then did it ever exist in the first place?