Fire Giants are one of my favorite tasks just due the fact how easy the escape is. When you are meleeing fire giants you're perfectly safe. If you see a pker on the other side of the gate or the agility shortcut you simply switch to flowers and x log while fighting a fire giant. Make sure to turn on protect from melee!! No need to run there is nothing pkers can do to get you.

If a pker managed to attack you while you are not paying attention go through the agility shortcut and back, or run back and forth until a monster tags onto the pker. Make sure not to attack him so he cant tag you again. You want to get out of combat with the pker and into combat with something else.
If you are safespotting you must be more vigilant because you are on the other side of the gate, open to attacks.