Medieval Reactions - aka @MedievalReacts - is the work of 19 year-old student Cathal Berragan, and it may just be Our New Favourite Thing On Twitter.
It may not be an entirely new idea - as Berragan recently told Vice: "I googled medieval pictures and there were already pictures flying around on the internet" - but @MedievalReacts' captions have got it down to a fine, and very funny, art. Medieval art, no less.
Here are just some of our favourites so far. Prithee, enjoy!