It's rude to read other people's messages.
James' sister left her laptop logged in to Facebook while she went to the bathroom.
James wants to know who his sister is dating.
When James' sister gets back, he keeps nagging her until she eventually tells him who she's dating just to get rid of him.
James scrolls through his sister's Facebook messages and comes across graphic sexual descriptions.
"James dances around the house singing the ""sitting in a tree"" song."
James has to vomit in the sink because his sister is using the bathroom.