Is this a rat or a mouse?

 
Is this a rat or a mouse?
Today I turned on the kitchen light while getting my breakfast at around 6am.. and an animal a little bigger than a hamster zoomed across the floor!!! It went into a hole in the wall and I covered the hole up, but it was dark grayish and it ran so fast I couldn't see the tail.. we sometimes hear them in the roof making shuffling noises. I'm not sure if we have mice or rats?
bigger than hamster you have rats
A rat probably, because a mouse doesn't look as big or bigger than a hamster.
no clue
....rats
Its rats i have a pet rat myself they are known to be pests but ppl mistake them, at my sistas boyfriends house they have rats and they could here them eating acorns they come in threw a hole in your house look around your house for any possible rat entries set up raat trap(non killable) take them to some where like a sewer, nearby forest, you could kill them but thats mean, They make lots of noises it almost sounds like a party there having, they are harmless, if you plan to catch them with bare hands or net you can't they are really clever so ya.

Source(s):

www.rats.com
its a rat cuz it is bigger than a hamster :D
bigger than a dwarf or regular hamster...most likley a rat though

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http://www.jcehrlich.com/home-pest-contr…
hope i helped!!!!!
definitely rats!!! smaller than a hamster- mice, bigger than a hamster- rats!
I have fancy rats. They are mistaken. They are smart and sweet and they just are plain mistaken. They are loving creatures but yes, it is most likely a rat. Unless it's some kind of mutant mouse!!! But probably not. You have rats.
rat. i have rats myself and they r the sweetest animals please only use humane traps!
: )