Derek “Tex” Grebner is an experienced firearms owner. He shares this negligent discharge video to show how different equipment combinations can have disastrous results.
When I took the California Security Guard gun training program (required for practical pistol ranges in the area at the time) they recommended you carry and use only one rig. After seeing the video and digesting the author’s lesson, this seems to be sound advice (he admits to using two that day which caused his problems).
WARNING: This video contains a lot of adult language (cursing) and shows a non-bloody wounds.
Once you have a holster firearm combination that works, keep those two items together. Do not swap out equipment that you have not tested for proper operation.