Hell no. But this guy did, because he saw no threat, because he created ASSUMPTIONS that made it safe. There's no reason to think a high-witted man would invent far fetched assumptions.
Here's me if I'm the bald guy...
Take it from the time the guy pulls out the vial on his person.
ME: "Whoa whoa whoa, I don't even know what you are about to propose, but don't move any further, i dont know what that stick is but don't even make a sudden movement, BACK THE FUCK UP AND FREEZE RIGHT NOW or I kill the girl!"
(Pause: Ok, for one, i dont know what the substance is he's pulling out. It may have an aroma to it that could knock me out from a distance. It might have a poison dart that can shoot out and hit me, it might.... a million things come to mind.)
(ALSO: When he announces it as a deadly poison...Ok wait a minute here. Why does a guy travel with a poisonous substance on his person?? Well, a logical man would first conclude that he carries it because he considers it to be an ASSET in some way for some situations. Well if it's an ASSET to him, why would I assume it could harm him, maybe it's a trick in some way? Maybe it's not a trick but a decoy, maybe it's water and he's putting nothing in the glasses and he's just trying to buy time for some other ploy that I haven't figured out yet)
Either way, as soon as he pulls out his own BIASED item, there is NOTHING I can possibly assume that I want to assume. He's taking control of making up the game, the rules, defining the products and materials in use, and using his own materials. WTF??!?!??! This isn't a logic game, it's a riddle. How is this traveler going to screw me over, he has an infinte number of ways to kill me and I don't even know where to start, I don't know if he's going to kill me with this potion or one of a million other things, because I haven't established anything or verified anything in the first place!
So Mr. Traveler, you want to offer me a game of wits? Ok, then let's play a FAIR game, not a game where you make up the rules, you hide stuff, you use your own BIASED materials, and I assume you speak the truth for my best interest. I mean after all you probably want to kill me so I don't kill you so we all know anything you say I can't expect to be true and fair can I?
So... either I MAKE UP ALL the rules so I can have control of the situation, or we find SOME OTHER WAY to compromise other than this mess of a tainted situation that doesn't give me any reason whatsoever to think it's a wit test. I have absolutely no clue or hint of information to think you are offering a wits test here. After all I'm a genius, and you are likely not, so why would I expect you to want to settle for a game of wits, your best card is probably of course a physical assualt of some way. The very concept that you are eager to play the wits game is suspicous in itself.
Etc. etc. etc.