What is the most wordless suicide note you have ever seen?

Dear teacher: I regret to tell you that my son can't go to class today. Because his backpack was caught by the door when he took the subway yesterday, and it was blown out because of the strong wind. All the books were lost in the subway. In order to help our son find books, we ran on the subway for nearly one night. Sadly, my son and I were sick, because we were scared by the roar of the subway car.