At the end of episode 8, when Cryos abdicates his throne Femur is shocked and begins listing the reasons why it's a horrible idea. As the episode pans away and ends, you can still hear him ranting and giving increasingly nonsensical reasons while everyone ignores him.
In the episode where Femur steals the battles moons. Pelvis faints on sight from Graveheart stepping into the control room ready to kick his and Femur's ass.
Pelvis attempts to kill Femur for the throne.
Femur and Pelvis rehearsing a meeting with Lord Mantle. Pelvis yells the line, "Guards, destroy these pathetic intruders!" Mantle yells the exact same thing at Femur a scene later.
From Cryos later in the episode, "Guards, seize these pathetic intruders!"