Sorry, but this evidence is kinda funny. So, you're drunk in the dark, smell salad, run away from the salad smell, and in a different location find a "handful" of snakes under a log, so you run home. Then 4 or 5 other times you've smelled salad while out in the woods.
Genuinely enjoyed the mental imagine of a couple drunk buddies running through the woods in the dark away from snakes, but I have to admit it's possible the smell actually came from a plant and you happened to walk through or by (which is accurate in my case) and you happened to come across snakes immediately afterward.