I do not own PJO, but I wish I do! *sigh*
Monsters should avoid eating the half-bloods below. I have reasons why you (monsters) should not eat demigods.
Children of Zeus.
You will get eclectic shock after you eat them
Children of Poseidon.
Too much salt in blood and flesh. Bad for health...
Children of Hades.
The flesh would taste like a corpse.
Children of Athena.
You will get –F for your exam
Children of Demeter.
They taste like vegetables.
Children of Aphrodite.
You would smell like designer perfume. Yuck!
Children of Hermes.
You will fail every business you tried or you will not get your mail.
Children of Apollo.
You'll sprout bad haikus, rhymes, ECT, ECT.
Children of Ares.
You can't control you weapon
Children of Dionysus.
You'll get drunk .Don't try it.