Do you bypass security measures (password prompt, encryption, ...) in place to protect the data against unauthorized access?
Do you obtain unlawful access to the data e.g. by sneaking into the data center and sucking the bytes off their servers to your favourite external HDD? And u do it all in black clothes and by night?
Do you cause excessive load on their infrastructure or excessive crawling resulting in significant site slow down?
If any of these questions is a yes, you are a sucker. And they will ban your IP and depending on the infrastructure, will come by walking / bus / car / truck / helicopter / aircraft carrier. Method of transportation totally depends in front of which door step you are shitting.
If any of these questions is a no, you're probably fine. Have a nice day.