(Here, let me save you. And also choke you to death in the process.

)
Once Demeter was hit by another bullet, she walked over to the human who had shot at her and grabbed him by his neck.
"So, you do not believe me. Perhaps some proof will make you understand." She held onto his throat a little tighter, actually meaning to choke someone this time.
"I am Demeter, the goddess of the harvest. I can bless you and I can curse you. You have disrespected me and my wishes, and therefore disrespect the fact that
I am the one who keeps you alive. So I'll let you know what it's like to live without me. No matter how much you eat or drink, you will always starve, living without my blessing. You will live for eternity, weak, starving, and dehydrated. No amount of pitiful ancient
magic can save you, you won't even be able to be put out of your misery."
Once Demeter had cursed him, she let him go. She didn't want to curse too many humans, because they'd end up being hard to keep up with, so she decided to leave the warehouse with Vasper and whoever else he was with now that one of the mortals were punished.
(Hope that's not power playing, to curse one of the extras...If you don't like it, I'll change it!)