BackFire
Blood. It's nature's lube
"How do you explain the footsteps?
Four people heard them at once, they couldn't have imagined it.
How the Hell did my Uncle get a glass of juice handed to him out of mid-air?
Who was banging on the wall and running up and down the hallway while my brother was in the shower if he was home alone?
How did my aunties CD go missing from its' case for two weeks then show back up there if no one else had laid a finger on it?
How the Hell did the phone leave my cousins pocket and end up on her mothers' bed when she never went in there with it?"
Maybe someone was walking? or maybe there was a noise in the house that SOUNDED like footsteps, but in actuality weren't. This happens to me sometimes. I'll hear something, sounds like footsteps, then I'll realize it's the clock ticking loudly for a few seconds or something. Houses have all sorts of things that can make all kinds of noises, some of them happen to sound like footsteps sometimes.
He was tired, probably half asleep, chances are no one handed it too him, he was just half dreaming and dreampt that part and didn't realize it. Can't trust the word of someone who just woke up, ever.
Are their any animals in the house? Dogs, cats,ect? If so, it may have been them making the noise your brother heard. If not, maybe someone actually snuck into the house, figured out someone was home, panicked and ran out of the house quickly, bumping into things and making noise.
Someone found them and put them back. Or maybe she was just forgetfull
This last one is tricky, the problem is we have to take the word of your cousin in that she never went into her moms room and put the phone down. The problem is, it's very possible she went in their and simply didn't remember, happens all the time. People don't remember every minor action they take, or every room they enter in the house. I've found shit before in places I didn't remember going too, but then after thinking about it I'd remember going in their for a few seconds to do something minor, just because she says she didn't go in the room, doesn't mean she factually didn't.
See, there's always another possible explanation aside from ghosts. And most of them time, they're reasonable.