Had nearly forgotten how much I loved this:
"I'm Too Sad To Tell You" by Bas Jan Ader
Some more info:
(Written by Cindy Loehr; New Art Examiner, March 2000)
In a work titled I'm Too Sad To Tell You, Ader filmed himself drinking from a cup of tea, then collapsing into tears of grief. He then made postcards of pictures of himself crying, with the sole inscription "I'm Too Sad To Tell You," and mailed them out for everyone to witness. Even though the performance was a public display and confession through the mail, it remained private, a solitary person's unidentified grief.