A: What is in this can?
B: I don't know; it doesn't have a label.
A: It looks like a corned beef can.
B: Well then, open it and we'll cook it!
A: It smells a little strange.
B: Maybe it went bad.
A: Why is the dog so excited?
B: Dogs love meat, so he can probably smell it.
A: Wait a minute, I think I know what this is!
B: What do you think it is?
A: It's the dog's canned dog food!
B: We're so lucky he discovered that before we did!