When you're watching previous episodes of Castle and you had to see Josh again:

Josh Davidsonofabitch.

You’re not welcome in my television nor in my laptop screen.

"Scotty doesn't know" - Castle version - "Josh doesn't know"

Josh doesn’t know
That Beckett and me
eyesex in the precinct every Monday

She tells him she’s at home,
But it ain’t her home
She’s at my loft making omelets

and…

Josh doesn’t know, oh,
Josh doesn’t know-oh,
So don’t tell Josh,
Josh doesn’t know,
Josh doesn’t know!

[fandom] SO DON’T TELL JOSH!!!

Beckett says she’s still working,
but Forbidden Planet we’re watching

Cause Josh doesn’t know!
Josh doesn’t know! (x3)
So don’t tell Josh!
Josh doesn’t knoooooow…
[fandom] SO DON’T TELL JOSH!!

I can’t believe he’s so busy
and he doesn’t see that she loves me,

Beckett’s got him on the phone,
and she’s trying not laugh,

we’re having a “Temptation Lane” marathon

And he knows nothing!
NOTHING!!

Josh doesn’t know!(x3)
Don’t tell Josh,
Cause Josh doesn’t know,
Josh doesn’t knoooooow….
SO DON’T TELL JOSH!!

I’ll write it in the snow,
everyone will know,
Josh doesn’t know,

Josh doesn’t know,
Josh doesn’t knoooooow….

L.A.?
Hooray!

It’s so amazing when I’m with her,

I don’t wanna let her go.

Laughing so hard cause Josh doesn’t know…

I kissed her on his birthday….

Josh doesn’t know!(x4)
Don’t tell Josh,
Josh doesn’t knoooooow…

Josh will know,
Josh has to know,
Josh’s gotta know,
Gonna tell Josh,
Gonna tell him myself!

Josh has to know(x2)
Josh has to (x2)
JOSH HAS TO GO

Josh doesn’t know,
(Don’t tell Josh)
Josh doesn’t know,
(Don’t tell Josh)
Josh doesn’t know…..
Josh’s gotta go…..

[fandom] Josh doesn’t know (x7)
[fandom] Josh has to go!(x3)

(not my gifs)