Smugglers don't have a toggled skill to reduce threat. We have a passive that comes from the tree. Seems all well and good except that it's pretty well useless in PVP. I got better stuff to spend the 3 points to reduce threat. Plus scoundrels have the in combat stealth. That's pretty handy in situations you find yourself outnumbered.
We also have the in combat revive. It's pretty dangerous to use though, because it locks out revives for 5 minutes. If you're in a group, and one of your group members dies, Get rid of any DOT's you have on you, stealth to get out of combat, revive the guy, heal him up BEFORE he attacks. If not in a group, in combat rez your companion, and heal them up if you can.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson