Related:

• Otto: Get off the bus or forever hold your peace, little dudes!
  Bart: Otto, you know I respect you. I mean, you always let us throw stuff at cars and try to tip the bus on sharp turns....
• Bart: Hey Otto! Hey Otto-man! Otto: Hey Bart-dude!
  Bart: Any new tattoos, Otto? Otto: Ho! Funny you should ask, man....
• Apu: Otto, do you know there's a small child inside your bus?
  Otto: [sees Bart] Ooh, good thing you warned me. I was on my way to Mexico!...
• Bart: [reading his history book while boarding the bus] Otto
  Hey, Bart-dude! Whoa, you little freaked! [?] Ba...
• Bart: I didn't know you played the guitar, Otto-Man!
  Otto: Hey, that's all I <did> in high school! -- "Otto Show...
• Bart: Otto, I'm going to leap over Springfield Gorge on my skateboard.
  Otto: You know, Bart, as the only adult here, I feel I should say something?...
• Otto: [humming into the bus microphone] Bart: Hey, Otto, can I use that microphone?
  Otto: Sorry, Bart-dude, it's for emergencies only. -- on the bus, "Bart the Daredevil...
• Otto: OK, little dudes, time's up. Everybody out! [kids groan, leave, except for Bart and Lisa] Lisa
  Time's up? Bart: So long, Lis. I'm going to stow away under water and go where the pool goes....
• Everybody on! No shoving! Hee, just kidding. You can shove all you want!
  -- Otto, "Bart's Friend Falls in Love...