Another wasp/hornet/bee problem and what to do about it?

Question

Just wondering what these are and what to do about them...I doubt my grandparents will want to kill them though...

And could this have anything to do with the lights in the room right there flickering?

http://members.cox.net/millermmail_web1/DSC_8613.JPG

http://members.cox.net/millermmail_web1/DSC_8619.JPG

Answer 1

They look like European paper wasps. These species are generally not at all dangerous unless provoked. There are specialized sprays for wasp nests- they are usually around 7-$10.