I didn't get to where I am now without a few, no, a lot of steals. It's the only way to overcome a weak regen rate. Guys at this level are pretty good about it so I can't complain. Stealing is part of the game. I lost a lot too. There are more guys around to go after a particular boss so unless there is a line-up on the attack page I say go for it. If you can't beat the stealer then you have to wait. Massive cloaks have skewed the chances. One shot, one kill., wasn't an option when I started.