Imagine that the fire in the break room was caused by Joel, who accidentally started it while taking an unauthorized cigarette break in the break room, then dropping a still-lit cigarette in the trash bin.

1-In that case, would Joel have been responsible for the damage caused to the break room and adjoining office?

2- What if no one knew who the smoker had been? Would it then be unethical for Joel to deny that it was his cigarette if Iris asked him about it?