A man likes sending random stuff to his friends through the mail because he finds it funny. This particular time the man takes some lettuce to the post office to ship to a friend from back home. He tries to package it up but it won't fit unless he cuts it into smaller peices. He cuts it up and stuffs it in a large envelope, however he forgets to write out and attach a shipping label. He doesn't realize his mistake at the time and brings it to the counter to send.
The postal workers says: "You can't send a salad like that, it needs adressing".