No! No! And, No!
I have been in situations in the woods before when the hackles on the back of my neck have just stood straight up (if I had hackles). I have not seen any other person or have seen any critters at that time. The thought of having coyotes or some other predator, including Bear, 'stalking' me or just watching me doesn't give me those feelings of being watched by 'something' that would send a 'vibe'.
Interesting thought here: if these creatures exist and if they are a pre-historic throwback to modern man or some heretofore undiscovered giant ape or giant humanoid, they may well have developed a telepathic type capability that we lost when we developed out ability to speak and use words. If so, the 'vibe' we feel when something like this 'watches' us may well be their concern as to what we are and what our intentions are - this could easily be their own 'flight or fight' reaction to our presence.
I too have shot and killed monkeys in the jungle and the reaction from the others was the same as that posted by one of the other responders - protectiveness and anger by others. I get the same thing when I shoot a squirrel sometimes - the others screech and chatter.
Funny encounter with monkeys: years ago in South America on assignment we pulled into an nightime redoubt and set up our perimeter. We had sent out radio communications, logged our position and turned in with 2 awake and one asleep for 2 hr intervals. All at once the trees seemed to come alive - buncha monkeys having a ball with us but they were running amok in between us and giving us fits ripping off equipment and tossing stuff around - we couldn't shoot so we were chasing them all around and they were having all the fun. One even managed to turn on one of our radios and the 'squelch' sent them all back to the treetops. But, when they came back one of the guys was prepared and when one dropped on down to play with the radio again this fella jumped him and caught him by the neck. Now the fun began - he had this monkey - looked like a Rhesus only a bit larger - by the scruff of his neck and the monkey couldn't get out of his grip - he was screeching like mad and the rest were pelting us with all sorts of treetop stuff. When we all turned on our flashights to check this monkey out the monkey and the rest of world became quite silent - no more screeching or anything. When we saw what it was, and that it was very frightened, we decided to let it go as we had plenty of food and there was no need to destroy this playful and innocent animal. We had formed a circle around the monkey and the man holding it gently put it on the ground - it stayed there, quite frightened, squatting on its haunches looking up at us as though asking not to be hurt. The man who had grabbed him lifted it from the back, under the arms and put it up toward a branch and the others then 'encouraged' him, I guess would be the thought, to come back up to them. After that they left us alone and we had a fairly peaceful night but felt 'watched' as we left the area the next morning.
I think primitive creatures have the ability to communicate with looks, actions and possibly even a form of telepathy. I think Bigfoot has the same ability. But please understand that in that time we were men with one thing on our minds and it wasn't being sensitive to an animal's possible ability to communicate to us through telepathy - our minds were far too closed to that level of sensitivity - we were on a mission..... However, when out hunting I think our minds are set to a different or more sensitive level of reception and are possibly able to 'pick up' on 'vibes' sent out by other creatures. I still think some of the 'vibes' people report are the 'fight or flight' concerns of these creatures and I think their hostility comes from our being too near for their comfort. I think that if armed and hunting our reaction would send a negative 'vibe' to these creatures that would concern them.
I know this - I would be scared schmidt-less if I saw one but wouldn't shoot unless I knew he was attacking. I have seen false charges by Great Apes and wonder if a Bigfoot 'charge' may not be the same sort of thing - an attempt to frighten you off. I know that if you assume a submissive stance with a Great Ape charge and do not look into their eyes they most often break off the charge. I think that if you stand and point something in their direction it acts like a 'defiance' or a hostile act and they respond in kind. The advice to 'not look into their eyes' and to lower your head and/or raise both hands palms outward as in a peaceful gesture by some of those who say they have encountered these creatures is both good advice and on par with the manner of dealing with a Great Ape. I dunno, just a thought. Mikey.