WATCH: She played the same trick on her brother for a year. He fell for it every time.

There’s an old saying that goes, “Fool me once, shame on you. Fool me twice, shame on me.”

But when your seemingly trusting, kind, caring sister plays a prank on you once, you don’t think she’ll be as callous as to do it again.

And again. And again.

That’s exactly what happened to this unsuspecting fellow who posed for a selfie with his sister.

Normal pose for a selfie.

Unbeknownst to him, she was taking a video.

His reaction? Hilarious.

The moment he realises he’s been tricked.

The first time it happens, he laughs it off. He’s embarrassed, but he won’t show it. But over the course of a year – yes, a whole year – his sister plays the same prank on him. And each time, he gets more and more angry. But he never stops to think, “Hey, my sister wants a selfie. Perhaps this isn’t the best idea.”

Poor guy. One day you’ll get that selfie you so desperately want.

One day.

Watch the video below: