We came back to our house after being gone and having it closed up for 10 weeks. There were some live flies and a lot of dead ones everywhere! I had a dead fly fall out of a bathroom cupboard when I opened it and lifted a lid to a toilet to see a dead fly floating around. When I flushed the fly their were more that appeared,,it was creepy. How did they get into a toilet with the lid closed??? I am having an exterminator come to see if there's something dead in the attic. I HATE flies! Has anyone else experienced this type of fly issue?