Mark it as Lost or missing. If it turns up by someone, they can still log the grab
That is exactly what I am trying to do (mark as lost) but can't find a place to do that!
It's on the drop-down on the right of the trackable's page, under "Actions".
I could not find that option so called my sister (long time cacher), who helped me figure out that, if you are not original owner, this option not available (no wonder I could not find it after searching and searching!). I was not original owner but had grabbed it from somewhere else. I e-mailed original owner and hopefully he or she can mark it lost. Thanks for the info, tho.