Be careful about doing stuff like popping bubbles, using lanters, breaking rocks, etc.
Those are usually jobs for DPS classes because most bosses have a frontal cone or cleave or something and if you go to use/break whatever you will drag the boss with you and it will be facing your target as you break and might decide to AOE which ends up causing problems, e.g. breaking rocks on titan, bubbles on the frog thing in Brayflox. The only time I've lost a pt member to the Brayflox frog was because I went to break its bubble and it got hit by the cone attack and died the instant the bubble broke.