In Montgomery Hosp. v. Workers' Compensation Appeal Board (Armstrong), 793 A.2d 182, 187 (Pa. Cmwlth. 2002), the Court noted "that an employee's injury is compensable under Section 301(c)(1) of the Workers Compensation Act, 77 P.S. 411(1), if the injury: (1) arises in the course of employment and; (2) is causally related thereto." In Montgomery Hosp. The Court recognized that an injury may be sustained "in the course of employment" under Section 301(c)(1) of the Act in two distinct situations: (1) where the employee is injured on or off the employer's premises, while actually engaged in the furtherance of the employer's business or affairs; or (2) where the employee, although not actually engaged in the furtherance of the employer's business or affairs: (a) is on the premises occupied or under control of the employer, or upon which the employer's business or affairs are being carried on; (b) is required by the nature of his employment to be present on the employer's premises, and; (c) sustains injuries caused by the condition of the premises or by operation of the employer's business or affairs thereon. Id.