I have seen this clip a very long time ago and I think it was actually from the beginning of a comedy.
There is a man (called Jack) sitting in a car and a few guys walk by saying "hi". Then another guy comes with a shotgun, saying "Hijack!" (word play) and the main character just hits the gun, and the hijacker shoots his foot.
The scene is very clear in my mind (at least I think it is), so hopefully I have described it good enough.