I like to read through questions that people ask about games just to see what other players have trouble with. Some of them are so funny that they're worth sharing. I'll put my comments below the question.
First of all, that's what she said. Second, Resident Evil isn't a detective game. Your job isn't to figure out whether the snake was breaking and entering. Your job is to survive.
Think you mean "past" and "boulder". Getting past the boulder is a very simple quicktime event where you follow the buttons displayed on the screen. You press "A" repeatedly, then press "L&R" when prompted. It shows it right on the screen what to do.
I don't even know what this question means. They wouldn't kill your dog unless provoked. the boomers are supposed to get on your team. Still, if you were leveled up and not retarded you could probably wipe them out. Something tells me this kid wouldn't be able to wipe them out though.