This comes from a playlist of videos on my YouTube channel 'BeatTheBush' with the same name. We have many things we are tempted to buy and this t-shirt reminds you and others that you to DON'T BUY IT! It's am important reminder because it is typical for the consumer to buy many things that one does not need resulting in a lot of wasted money. If you save, you shall retire early.
One time, I wore this into a gas station and this guy saw what it said. He pointed it out to his friend and proceeded to put back the chips on the shelf. I over heard him saying its a sign. HA HA HA!