There was one last night in the downstairs bathroom when I was getting my things ready for my night routine! It was black and big (id say between a teenager and an adult size)! It was on the ceiling and the worst about that is that when I saw it I had just been there! I got it with a Swiffer mop, I had to let go after crushing it on the ceiling and it fell on the floor still alive so I crushed it some more with the mop on the floor!