This segment originally aired March 4, 2017. Seated in a bucket, ears plugged, grinning through the cascade of green, oozy chaos, fourth-grade Lizzie Nielson lived a Nickelodeon fan’s dream. “I have all the paperwork in order to suggest that I was slimed,” says Nielson. She does, in both photographic and certificate form, lest anyone doubt this point of pride. The children's television network Nickelodeon is famous for sliming everyone, from kids to celebrities, with a waterfall of thick, green,