Driving home from my mom's house this afternoon, I hear Calvin say "Don't pick your boogers Luke." I look in the rearview mirror. Sure enough, Luke has his finger UP his nose. Calvin, again, "Luke, don't pick your boogers." Then Luke says "I'm not picking my boogers Calvin." I look back again - his finger is still in his nose. Calvin appears to be getting disgusted (can't imagine why, he's certainly picked enough boogers in his life...) and says in a very loud tone "Stop picking your boogers!!" To which Luke replies "I'm NOT! I'm just poking my boogers!"