I suggest you roll a tank class, gear out in all defensive gear, select all the possible tanking tree talents, forgoing any damage mods/skills, maxing out your war-hero gear, using a rakata fortitude stim pack and then...
getting killed in 4 gcds by a:
1) shadow
2) pyro pt
3) marauder
4) jug
or 5 gcds by a:
any other dps besides a merc or sorc.
And then posting about your experiences here.