Shielding Around Vampires

One key thing that I think often gets skimmed over and forgotten when people are dealing with shielding around vampires, and specifically large number of vampires who may or may not be in very good control of their draw on others' energy (the latter being extremely common in fairly newly awakened psi vampires), is that the presence of a shield doesn't stop a psi from being able to feed--it's simply redirects what or where the psi is feeding on and from. Almost all shield techniques put out to newbies involves something along the line of envisioning a ball of light and spreading it out to cover them, or a box or bubble of light/energy around them, etc. 

The key point is that those shields, and all shields, are still energy. Which means that while the psi might have difficulty accessing the person directly, they can now simply feed off of the shield. Unfortunately, in most "beginner" techniques, no one mentions where the energy is to come from to make the box/bubble/energy ball, so a very good majority of people tend to take the energy to generate and maintain their shields from themselves. Obviously, this means that instead of the vampire snacking on them by drawing from them directly, they're now being drawn on via proxy, as the vampire draws on the shield and they have to put more of their energy into the shield to counteract it.

So the solution? There can be many, some nicer than others. One I'm fond of for newbies and beginners, that is fairly simple, is to have them set up the shield to draw from the ambient energy around them. There are a few obvious drawbacks to this, namely that if the ambient energy is lower somewhere, the shields will tend to be weaker. However, it's simple and easy for most people to do. Also, it means any psi coming around to munch is going to get what they want and move on, without any real effect on the person who is shielded.

Other...less friendly, and more complex, methods would be things like shielding using a feedback system when someone draws on the shield, they get some sort of undesirable element with it, be it a high-pitched frequency, barbed energy, etc. Drawbacks here are that it typically takes more energy to sustain that type of shield and that not all people will be bothered by it, as a number of people tend to "filter" whatever is drawn in. Another option is to set up a multi-layered shield system that is a series of one-way walls, with the outer layer only allowing energy in and the inner only allowing energy out. That way anyone attempting to feed off of the shield will have a much more difficult time. Some might still manage, but there is usually easier food to be found, since the effect is like trying to feed against a vacuum.