Bats. 
Earlier this year we had a heavy wind & rainstorm that caused a small bat to seek shelter in our attic. It ended up falling thru the Vent in the Master Bathroom and into the Shower Stall. I found it soaked and huddling in Shower floor. Took the dustpan and gently picked the little bat up, took it downstairs and placed it in the, dry, flowerbed.
For the next 3 days we had our own bat insect removal service. 
Mark Gosdin
