3. Don't feed the beast.

You might think that vigorously agreeing with an emotional vampire might give them what they want so that they go away. Not so. Like the classic-blood sucking variety, emotional vampires have an endless thirst, only theirs is for drama. The more you give them, the more they'll demand. Do your best to stay emotionally blank when interacting with them (some call this the gray rock method, as in try as much as possible to resemble a gray rock when interacting with toxic people.)

This isn't rudeness, it's teaching the energy vampire that you are not going to be a reliable source of energy.