As the zombie Parker is decapitated by the mailbox you can see there is a lot of mail sticking right out of it. After Xander drops the body we see that the mail is sticking out only a couple of inches.

The scene where Xander and Oz discuss “coolness” starts with a voiceover of Xander talking, over a shot of food being cleaned up. In the background of this shot, you can see Xander, Buffy, and Willow at a table. But the next shot (and the rest of the scene) shows …

Why doesn’t Buffy ask Angel for help against Kralik?

After Buffy sees the photo of her mother in danger, she gets changed and does her hair before going to rescue her.

Buffy places a book on a table and stands up, as she does the book begins to slide towards the floor. In the next shot the book is laid flat on the table on top of another book.

Buffy states that she and her dad go to the ice show every year for her birthday. They didn’t go last year (in the episode Surprise), and she didn’t even mention the tradition then.

Not only are the residents of Sunnydale burning their own kids, but they’re doing it inside too! What if City Hall went up in flames? Proves once again that the vast majority of people in Sunnydale are total idiots.

When Willow is locked in her bedroom, why doesn’t she just go out the door that leads directly outside? The door has been seen and used several times before and since this episode (such as in Lie to Me and Consequences). That side of the room is conveniently not shown …

The gang look at a German webpage depicting Hans and Greta. Why is Giles typing? The page doesn’t change and nothing happens to the computer, but he types a few things in anyway.

It’s a well-known fact that Giles hates computers - so why’s he such a fast typer? This can be seen when he’s looking at the German article, and is typing away (for no apparent reason).

The German article on the computer is full of mistakes, especially the grammar. It looks like Giles’s explanation was translated word by word from English into German - and that often doesn’t make any sense.

Giles and Oz use the computer on the table in the library - but have you noticed that the computer is only occassionally there? Who spends time plugging in a computer (which the Scoobies spend a lot of time using) and then moving it off the table? And where is …

During the locker search, a cop is looking through a purse. A long time later, and after looking through other things, the same cop is seen looking through the same purse.

The snow settles too quickly, and there are loads of footprints in it, considering it fell just before dawn.

The First Evil cannot touch (discovered in Amends and in season seven), yet the First/Jenny clearly touches Angel.