Whaaaaat? Fire solves every one of those problems.
Hungry? Eat some fire! As long as you don't eat all of it at once there's seconds waiting for you.
Parents hammering st at your door? Burn em!!
Onslaught of PB? Burn em even more!
Nothing is unburnable if your fire's heat is not limited to pesky physics.
Nope! I've always been Davroth, but now I'm Davroth! ;D