So are we mad? No. First, she did a much better job at the situation then her parents would have at that age. And, she knew to take the consequences herself, instead of calling Kish to drive into the city in rush hour to deliver the shoes, just to avoid detention.
A bit harsh? Perhaps. But it's not likely Danielle will forget her shoes again and it really is a life lesson. Plus it's just detention and we're assuming nothing like The Breakfast Club.