It affects my cat. We always know when there's a full moon even before looking out the window. She goes mental. Running around the house like a 'lunatic', knocking things over, scratching carpets and furniture.
She got so mental last night she attacked the fruit bowl and ended up on the floor with it and a pile of candles next to her looking bemused at the whole thing. My lap top wires got attacked last night too.
When I went off to bed could hear her running up and down the stairs and around the landing at 100 mph!!!
:o)