I will have to withdraw my second entry (“I swear I’ve been framed!”) because it has already been used. I apologize for not being careful.
Bad Ronald: The Early Years
“PlaceboTarget Gets Banished To The Portrait For Taking Artistic License”
“Mr. Pirandello! Did you find an author for us, sir?”
I’m quite glad I’m not the judge this round!
(not a caption!)
“If I can get out of here, then I should be able to get into that Rubens painting with all the naked babes!”
Avez-vous d’absinthe? We’ve run out over at the Moulin Rouge!
“When I was a kid, hula hoops were made of wood…and square. And that’s the way we liked it!”
Not in play, but I found this, for anybody who’s looking for copyright-free images and royalty-free stock photos:
My inner 12-year-old gives the win to Spoons.
@Spoons , congratulations! Please post the next picture. 
Okay, let’s see what you folks can do with this:
“Don’t look at me, dude. I don’t know where you Hide-a-Squirrel is.”
Just one look, that’s all it took…
It’ll never work - our families are too different.
A moment later, Fido was missing his nose.
“No butt sniffs, Jojo. Do we understand each other?”
This is an Overlord?
“The first to blink buries the poop in the garden.”
“If you sniff around the room and you can’t tell who the sucker is, it’s you.”