Disclaimer: Once again they're not mine and probably never will be…"sobs"…

Summary: This is an Olivia oneshot about how she feels when she's chasing a perp.

Adrenaline rush.

An adrenaline rush. That's the only way I can describe it.

I can be standing there. Still as doorknob.

Then all of a sudden BAM!

I'm off running, jumping hurdles.

My blood pumps through my body at a dramatic rate.

I'm unstoppable (or at least that's what I like to think).

Seeing what I see and doing what I do every day means that I'm always ready for a chase but unlike Elliot I can take off at the speed of light when duty calls.

He always catches up eventually but only after a full minute of steady running.

Cragen calls this my second best asset only second to my empathy for the victims.

Alex calls it my fiery passion for what I do.

She's right.

Every time I see a crying child, a brutalised teenager or a murdered adult that just becomes another log on my fire.

Whenever a perp decides to run I think of what I see everyday and then my passion…my adrenaline rush just ignites and I become invincible.

Elliot's seen me jump in front of cars, off rooftops and into gunfights just to catch these people.

Alex has seen my bruises, scars and bullet wounds to prove it.

I think I'm invincible and Alex thinks I'm insane.

"One day." She says.

"One day you'll get shot and you won't wake up."

I just grin and say:

"Then that day my love… That day will be the day I say I'm not invincible."