The court in Dow Chemicals stated, the Texas Supreme Court "ha[s] never concluded that a general contractor actually exercised control . . . where . . . there was no prior knowledge of a dangerous condition and no specific approval of any dangerous act." Dow Chem. Co., 89 S.W.3d at 609; see also Gomez v. Charter Builders, Ltd., 2012 WL 662321, at *5. Therefore, to fall within the exception to the no-duty general rule, a general contractor must have actual knowledge, not constructive knowledge, of an independent contractor's safety violations.