Heh, not bad. Got a laugh out of me, that. Now I'm wondering what 'wrong item' they actually did get... and what flavour of yogurt Cyrus wanted as well. XD
However, I'd say that maybe the punchline could have had more set up - some more build-up to make it seem more that Jupitar and Mars had messed up something more serious and all. Would have possibly added a bit more for the punchline then, methinks, but otherwise not bad at all - short but sweet. And everyone knows a successful criminal team needs their yogurt!