Answer:
There are consequences for your actions.
Step-by-step explanation:
Everything we do has a result that can be positive or negative. That result is what a consequence is, though whenever we hear that word, we usually first think of something unpleasant and unwelcome. The sign the artist created reminds us that, whenever we are about to do something, we should first think about what effect our actions could have. That is something we often forget to do. Had we had that sign in front of us, we would've probably made fewer mistakes.