It's nice when they leave a note just saying they'll be away for a while. It doesn't happen that way all the time, still missing 2 I came to like very much. Have missed more then that, but one got back in touch in a very round about way and another did much the same and is now back. Sometimes things happen and happen so fast this isn't very important in the moment. All we can do is hope all is well or at least as well as can be. Yeah more then a few I miss.
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Just enjoy what you do, as best you can, and let the dog out once in a while.