358. “The statute not only is aimed at preventing actual physical injury or death but also is designed to discourage criminal conduct that produces fear of physical harm.” Id. In Yarborough v. Commonwealth, 247 Va. 215, 218, 441 S.E.2d 342, 344 (1994), the Supreme Court explained, “the Commonwealth must prove that the accused actually had a firearm in his possession and that he used or attempted to use the firearm or displayed the firearm in a threatening manner while committing or attempting to commit robbery or one of the other specified felonies.” (Emphasis added). Code § 18.2-53.1 is written in the disjunctive, prohibiting either the actual use of a firearm, or the display of a firearm in a threatening manner. See Gunn v. Commonwealth, 272 Va. 580, 586, 637 S.E.2d 324, 327 (2006) (<HOLDING>). “ ‘[T]he use of the disjunctive word “or,”
holding that the title of the statute did not limit the reach of the statute holding that a statute may be facially challenged only  by establishing that no set of circumstances exists under which the statute would be valid ie that the law is unconstitutional in all of its applications or at least that the statute lacks a plainly legitimate sweep  holding that the statute qualifies as an exemption 3 statute holding that where a statute uses the disjunctive term or the provisions of the statute plainly encompass two distinct situations recognizing that a plaintiff may be able to establish that the statute is unconstitutional by showing that the statute lacks any plainly legitimate sweep  citation omitted