Large Black Flies In Bathroom

I am in my bathroom and all of a sudden there is this big black fly.
Large black flies in bathroom. Shower pans are prone to leaking and the area under the shower pan becomes a prime moth fly breeding source. Specifically you re likely to spot drain flies near sinks and showers that are stagnant for a time like after a long vacation or used very infrequently such as a guest bathroom. I put out some poison and a couple days later large black flies appeared in that bathroom.
I assumed they were there for the dead mouse. Not only are flies hard to get rid of they spread bacteria collected from landing on feces dead animals garbage and other unpleasant things. In homes drain flies are generally found breeding in bathroom drains particularly those in showers.
My husband more so than me but they turn him into a crazy person and then i get all crazy because he drives me crazy and so here i am today teaching you more than you ever wanted to know about flies. I do not want flies hatching in my house. I absolutely hate flies.
They are called cluster flies. Ok ok do not worry. They are gross looking and their story is kinda gross but if you check this out you will not worry that they are coming.
Few sites are so disconcerting as a swarm of big black flies buzzing around the house. After using fly swatters and sticky strips the flies were gone and so was the mouse. Flies come into our home every summer and drive us crazy.
As you said they are easy to kill because they move slowly. Large black flies in the house. So i decided to dissect the situation.