Corned Beef in a slow cooker?
This year, I slow cooked corned beef for about 8 hours in my crock pot.  The slow cooker was set to high for the first 4 hours and set to low for the last 4.  The meat didn't "fall apart" when I took it out, rather it kept its form and allowed me to slice it (against the grain).  

I should mention that I had the corned beef submerged in a water/beer mixture during the entire cooking process.  I used 1 bottle of beer (optional) and filled the rest of the slow cooker with water until the beef was submerged.