User blog comment:Little-Red/Cryptic BS/@comment-2059440-20140709091230

even though I know exactly what all these things are going to represent I still find amusement in thinking the foot symbol was due to some encounter in which Worry was on an unusually successful rampage, turning some sacred place mad and Nebula ended it with a stomp, maybe without even knowing anything was wrong.. thus it became a symbol of power.

There is just some weird humor in Nebula of all beings ending up getting a symbol of power like that - not to mention the embarassing / awkward legacy it brings.