Get a dog if you're willing to spend LOTS of time with it. Don't get a dog because you like the idea of having a tough looking animal around. The guys next door in the rental house have a pit-looking type of dog that barks all the time. They're never home - always out doing something that...
Bummer. I know how you feel. Twice in my life I've to the vet with a sick dog and came home alone. Its a horrible feeling, but it gets better with time.