For the first time, I declined to review a manuscript for a journal, based on its abstract. I read the abstract yesterday, and decided to do nothing. I was working on a paper, and thought that I would sit on this decision for a day even though I didn't like what I read in the abstract. Today, I didn't have much to do with papers, so I wrote a Blog in Chinese, which probably took me more than one hour (not that I wrote a long article; I am just very slow at writing/typing in Chinese). By late afternoon, I decided to do something about this invitation (to review a manuscript). I read the abstract once more, and clicked decline. I made this decision based on my own experience on dissolved oxygen concentrations in the northern Indian Ocean.