Okay, what if KingIsle made a new quest (Given at level 15) so that you can unlock a special "Rug/Fencing perimeter/interact" furniture piece and you can put your extra pets in there? I think it would be a plus and make alot of people happy. I certainly would love this idea personally since I could run around with my Heck Hound or my Dragon or my Ghoul. Maybe even let the pets do tricks when you interact with them through the "X" button.
Example: Pet:Ghoul/Myth Ghoul Interaction: Digs with shovel
Pet:Heck Hound Interaction: Summons a moon and howls.
Pet: Spider/Lava Spider/Brown Spider Interaction: Spins a web
Pet: Dragon Interaction: Dispells fire through mouth and or Nose
Pet: King Krok Interaction: Makes a throne and sits down
Pet: Krokmummy Interaction: Rises from tomb
Pet:Fire Cat Interaction: Summons a ice mouse and plays Cat and mouse
& much, much more
And for Level 48 Pets...
Pet: Othrus Interaction: Undecided
Pet: Ice Colossus Interaction: Summons Ice field and "Ice Skates"
Pet: Wraith Interaction: Summons a small Cemetery and walks around like a grim reaper
Pet: Satyr Interaction: Dances a tune
Pet: Stormzilla/FireZilla(Although not a boss, same pet, different colors) Interaction: Pretends to crush a city
Pet: Helephant Interaction: Plays with a ball of fire
Just a little idea i stumbled across whilst playing with my Heck Hound.