Excerpt from Operating Hand Brakes
Rule 1213. Standing or placing any part of the body between side or end of car body and lumber, pipe or other lading likely to shift, is prohibited.
Rule 1214. Stepping from side ladder to brake board is prohibited. Step to end ladder first and have secure hand hold while doing so.
Rule 1215. Using any part of an adjacent car for foot rest when applying or releasing brake, is prohibited.
Source: The Pennsylvania Railroad, The Long Island Rail Road Company, Safety Rules, Train, Engine, and Other Employees, Effective November 1, 1933.