Little Johnny had an old coffee can

The mailman saw Little Johnny sitting on the sidewalk with an old coffee can. He asked, "What do you have in that can there?"

Little Johnny replied, "Dog shit."

The mailman asked, "What are you going to do with a can full of dog shit?

Little Johnny answered, "I’m gonna make me a mailman!"

The mailman got pissed off and told a cop that there was a little kid causing trouble. The cop walked over to Little Johnny and asked, "What ya got in that can?"

Little Johnny replied, "Dog shit."

The cop asked, "Oh yeah? What're you gonna do with that?"

Little Johnny said, "I’m gonna make me a mailman."

The cop taunted, "Oh, you don’t have the balls to tell me you’re gonna make a cop?"

Little Johnny replied, "Nah, I'd need way more dog shit for that."