if you saw a cardboard box in the distance would you want to know what was inside it , is curiosity present in you enough , it is me i'd have to check

I wouldn’t be kicking it. If it’s outside in a public area leave it alone. My brother-in-law has a heat & air business. Got called to a business building with a set of stairs going up to the entrance door. There was a cardboard box sitting on the steps and he just walked around it. This was before office workers were in the building. He was working on the a/c and saw firetrucks and police there. They came to check out that box. Turned out that it had a b*mb in the box. If he had kicked it or tried to open it the box would have exploded and killed him. This was over 25 years ago.