The Dash -- grammar's nice black pants

Earlier today, I was looking up the correct way to use the dash and was particularly amused by the description in The Elements of Style by Strunk and White:

"Use a dash to set off an abrupt break or interruption and to announce a long appositive or summary. A dash is a mark of separation stronger than a comma, less formal than a colon, and more relaxed than parentheses. Use a dash only when a more common mark of punctuation seems inadequate."

I love when punctuation gets described like dinner attire.