Thorough through and through

Browsing through a homewares shop in Newtown the other day, I had a triple take at a sign about their delicate decor:

CUSTOMERS ARE REQUESTED NOT TO TOUCH THE FOLIAGE THOUGH'S WHO DO WILL BE SHOT IN THE BACK ROOM...

I didn't read the rest of the sign, was already laughing too hard. I didn't touch the foliage though.