lol... mate, there are heaps of things you can do with just one dumbell.. .that's why I had to put in the 'will not separate'
1. dumbell row (one arm, of course)
2. one arm dumbell clean and press
3. one arm dumbell curl (granted, you would have to be a strong MOFO)
4. one arm farmers walk
5. deadlift (two hands, like using a kettlebell
back surgery was last resort.. part of the disc nucleus was pushing out onto the sciatic nerve, so was getting pain down the right leg.