Beaker gets one in the second episode where he conquers his fear of the dark by defeating the slime monster (The representation of his fear) with Scooter's computer pen. To make it even more awesome, when bedtime rolls around Beaker has no problem falling asleep in fact the only one whose still afraid is The Hero himself Kermit!
Piggy gets one after Animal disappears while the babies are time travelling, and they find him in a mafia city. Animal refuses to open the door to the club he's hiding in for Kermit. Piggy steps up and sweetly says, "Let me try, Kermy"... and then karate chops the door down with a "HI-YAH!" that makes the others' eyes practically pop out of their heads.