Edmund, most of the time, is too lazy to work up the effort to squeeze out a full-fledged meow, instead settling for a meaningful glance, occasionally laced with a whiskertwitch or two. Only when he is annoyed (defined as "my brother kitty will not play with me when I bite him on the ass") does he really feel the need to actually audibly voice his opinion. Today was no exception, but even without the vocalization, I got the point.