I saw a movie once at a drive-in so it had to be in thelate 70's, and I've never known anyone who knew what the hell I was talking about when I describe what I remember of it.

I remember 2 scenes (and I hope they are actually from the same movie...I was pretty young). 

The first has this couple in bed who are awoken by a guy standing at the foot of the bed and he's tossing poisonous snakes onto them. 

The other scene has this same guy driving (in the desert?) and he looks up to see the faces of his victims in the rear-view mirror.

I'm fairly sure this was a horror movie...or a "thriller."  Is there anyone out there who knows what this flick is so I can, if not find it, at least know its not my imagination?

I was just at the local Blockbuster and  was checking out the "horror" section and I was thinking about the days of the mom and pop video stores.  When you could find 4 or 5 in a decent size town, when VHS ruled (and sometimes Beta-max).  I remember finding titles such as "Return of Aliens: the Deadly Spawn" (and as far as I know, despite the "return" in the title, this was not a sequel),  "Unmasked Part 25" (also, not a sequel), "X-tro", and something where Alice Cooper was a werewolf.  Foreign movies...often bloody and more often hilariously bad were plentiful.  Stores with names such as MovieMania, Visionex, and At Home Video.  Bad horror movies...bad Conan knock-offs...bad comedies starring Linda Blair or John Ritter...these places had it all.  A lot of movies I remember watching have never been released on DVD and probably never will and Blockbuster would never carry them if they were.  There is EBAY but some movies are best watched once and nearly forgotten.  Remember any films like this:  share.