The problem with staying up waaaay late...

...is that your rationalizing skills tend to disappear. In the CSI fandom, 'GSR' in the summary stands for 'Grissom and Sara Romance' (similar to the AAMRN in Pokemon, or 'Ash and Misty Romance Novel').

I've just read it as 'gunshot residue', commonly called GSR.

Sleep is good. I should try it sometime.