Could this be the work of gremlins, faeries, or bad spirits?

most of what you read is just lies and fantasies. spirits don't usually play pranks on people unless they're children. indian spirits only mess with you if you disturb their remains or belongings. have you found anything weird in the yard lately? faeries/fairies aren't as mischievous as most people think. you're probably thinking of pixies. they're pretty easy to confuse with each other. but pixies like moving your stuff around and hiding it to mess with you. gremlins do mess with electricity though. they'll mess with anything, pretty much. but it might be an ordinary electric problem. try calling an electrician first, see if he can find the problem. most pixies/gremlins/tricksters attack small rural areas, houses surrounded by woods and/or water or properties in the country such as farms or ranches. hope this helped.