Ghostbusters Afterlife: Firestation ghost

A fun task I had at acertain point during the developement of the movie, was to design a ghost that would manifest in a fire station and terrify all the firefighters.
So the question for me became, what could scare a fireman?

Large fiery ghost chasing a firefighter away.

Large fiery ghost chasing a firefighter away.

The ghost could be a firefighter who died from severe burns.

The ghost could be a firefighter who died from severe burns.

What if the ghost possessed a firefighter mascot uniform?

What if the ghost possessed a firefighter mascot uniform?