Someone can experience a serious injury from falling because of mopped floors, broken sidewalks and parking lots, defective stairways, spills on the floor, unnatural accumulations of ice or snow, or other types of unmarked hazards. (chicagopersonalinjurylawyerblog.com)
Slip - and - fall / trip - and - fall accidents resulting from unnatural accumulations of water, or obvious defects (chipforstall.com)
That all changed with the Supreme Judicial Court's 2010 decision, Papadopoulos v. Target Corp., in which the court abolished any legal distinction between natural and unnatural accumulations of snow and instead said that a property owner has a duty to act «as a reasonable person under all the circumstances» with regard to removal of snow and ice. (lawsitesblog.com)