lol not stalking your posts but yeah, this is a really simple method with Raphael:
Some other tips, run your hands over him gnetly, see if anything seems tender, or any spots on his abdomen seem warmer than others (abdomen area is usually warmer than rib cage, any hotter spots not within the non-ribcage area may mean a problem).
I did a post a while ago about dogs in general and there may be something useful in it: