they make zombies in places like haiti with puffa fish toxin, could we instill that kind of trance in ourselves and confuse zombies by pretending to be them it may be a way to get through crowded areas of zombies safely
Zombies have the famous limp that makes them stand out, however, people have tried to move safely through an infested area by adopting a shambling, awkward limp, to date, none were succsesful. The undead are able to smell a human on the wind, and there is an astronomical difference between the smell of rotting flesh and fresh flesh, that is one way. Also, humans are not made to walk like that for long periods time, anybody who's broken a leg will say it gets uncomfortable to limp after a while, so trying to traverse a long distance limping will be close to impossible. Third is sight, the average zombie looks like a man who was mauled by a bear, buried for several weeks, then revieved VS. a human who is normally clean and well dressed. A zombie knows what a zombie looks like, and knows what a human looks like, and can tell the difference between the two.
I can't say if it'd work or not. In every zombie movie I've ever seen (except Shaun of the Dead) acting like a zombie was pointless. Zombies can tell a living person from a dead person 100% of the time. How they do this is unknown (speculation runs from scent, living moving differently from the dead, to some sort of extrasensory ability humans don't possess) but in every situation they just knew and couldn't be fooled.
The most logical conclusion is that the zombie is not burdened by the normal filters a human imposes on their senses. Zombies don't have any extra sensory powers, they're just more attuned to them because they don't think about it. They receive input, they react.
As for distilling zombie gore, now you're talking about concentrated infectious material. All you would succeed in doing is weaponizing zombie gore.