Spike goes through a process that dragons suffer from that might kick him out of the house.
Did You Know?
The Roc originates from Persian mythology, and was featured in the classic tale: Sinbad the Sailor, and many media renditions or references to it. They are portrayed as birds of prey big enough to carry off whole full grown elephants. The one shown here is accurate to that size. Judging by retrospect to Zecora, Twilight Sparkle, and Rarity, it's about 50 feet in height with a wingspan of about 180 feet. See more
References The Ten Commandments