I, like most people, prefer fish to be cooked correctly. For salmon, this means soft and velvety (but warm) in the center -- what I would characterize as medium rare.  I consistently overcook for two reasons: one, fear of bad stuff and two, because I am guessing. What are good rules of thumb for telling when it's medium rare? 
The term "dog" has been used as a synonym for sausage since 1884 and accusations that sausage makers used dog meat to at least 1845.  According to a myth, the use of the complete phrase "hot dog" in reference to sausage was coined by a newspaper cartoonist in 1900, but there were several earlier references, but no specifics on the origination of the phrase. 