People wrote down their biggest regrets for all to see on a chalkboard in the middle of New York City this week in a video by Ashton Kutcher's media company, A Plus (yes, Kutcher has a media company now that he is better known as a tweeter than an actor). It soon becomes clear that most of these regrets have one thing in common, and if you're willing to endure enough feelings and tinkling piano music to get to the end of the video, you can find out what.

Sources: Ashton Kutcher