and also, a gentleman who has been here before, his name is science bob pflugfelder of the boston pflugfelders's -- science bob is an elementary schoolteacher. he teaches science. he makes science fun. when i was in school, we had a teacher who made science not fun for us. she made it dreary and sad what was her name? >> cleto: mrs. dixon. >> she was like three feet tall. >> cleto: she called me the wrong name. >> jimmy: for those of you that weren't listening, that was the bell. but science bob is fun. here's some highlights from the last time he was on the show. >> three, two, one, pour. there we go. >> jimmy: whoa! >> pressure is building up now. bubbles are being created -- >> jimmy: i feel like jesus. whoa! whoa! >> powering it up. >> jimmy: oh, feels weird on my body. oh. >> go ahead. >> let me lob -- >> jimmy: oh! most of the audience was killed that night, so -- [ applause ] that's a warning to you. but tonight, science bob is going to make a cloud in our studio, a real huge cloud. and we're all going to lay on it and play harps. i should also mention that the l.a. feast of san gennaro