He sees you when you are sleeping. He knows when you are awake. And apparently he breaks into your house through the chimney. If you think about it for even five seconds, the whole Santa operation is deeply suspicious.
The Details:
Red text at the top reads "So I Creep" in a bold retro font. Below is a vintage-style illustration of Santa Claus climbing into a brick chimney with a large red gift sack, with a speech bubble reading "yeeahhh!" in cursive. White sparkle accents surround the scene. Printed in red, dark red, and white on a natural cream tee with a retro holiday greeting card feel.