At first glance you may not get this Survivor shirt... that's actually the point... as Admiral Ackbar once cleverly stated "IT'S A TRAP!!!".
The text is setup in a manner that urges people to discover what it says, it pulls them in... if you're lucky, they actually read it out loud... then they look at you with a questioning expression on their face... and that's when you let 'em have it!!
All you gotta say (sing) is... "of the tiger!"
The shirt does the rest... you've just 'RockyRolled' them.
You can watch their expression turn to amusement, as they finally understand the shirt... but little do they realize, they don't entirely remember the exact tune... and you only sung the last part of it, leaving them with an incomplete tune in their head... a tune they KNOW, but likely haven't heard since the Rocky movie fanfare of the 1980's.
Later in the day, you can claim your victory over their mind... taking credit for the burrowing distraction that plagued them that afternoon... enough that they probably went over to YouTube to hear the song again, in hopes of washing it from their short-term memory.
Does it work every time? Probably not (some people are busy enough to forget anything)... but it DOES work... you want to click play on this YouTube video, so you can hear it again... don't ya?