Unnecessary Punctuation “Marks”

If bad punctuation leading to misunderstanding has ever annoyed you or made you angry, go here. Reminds me of the first book to make me laugh out loud in a long time: Lynne Truss’s Eats, Shoots & Leaves. (You’ll never look at punctuation in the same way.)  [If such things make you laugh, see this.]

The other day I was putting liquid gold–I mean, gasoline–in my truck and I noticed one of the warnings on the pump: “Do not overfill, tank.” If my name’s not “tank,” does that mean I can? Do they have a lot of tanks filling themselves up in Crookston, MN? What is with the urge to put random punctuation in strange places?