Some hunters also just have that...luck, for lack of a better word.
I hunted many frustrating years with my uncle.
I would wear as much camp as I could, practice scent control, work the winds, hunt from stands, blinds etc. Do all the "textbook" things that should make me a stealth monster in the bush.
He would toss on his everyday work boots, grab his flannel work jacket from the hall closet and a rifle and then stomp out into the bush following a recent deer track looking every bit as much of Elmer Fudd as he could.
He'd tag out in an hour and I'd eat tag soup for the winter.
One of the old guys I know packs a coffee pot, a new pouch of pipe tobacco, and a new western Novel as his main hunting gear.
Lights a fire, loads his pipe and coffee pot up, and reads his book. Sooner or later, a buck comes wandering by to see what this is all about... He does well.
I had one whitetail buck come in to me after I blew on my deer call like an ADD kid blowing his noisemaker at his very first ever New Years Eve Party. I was sore and tired, and just didn't really care any more that day, and figured at worst, the noise might kick something up from it's bedding in the river flat below me. A few minutes later, this buck comes wandering up a cut, ears forward, and looking for the source of the noise! If I held off for a couple minutes more, he would have been darn near to standing by my truck when I shot him. As it was, it was a super short drag!
A friend of mine was an avid bowhunter, and he would occasionally string a set of antlers up on some cord and a couple pulleys, to use to rattle for the bucks. He said that he would sometimes just go spastic and beat the living hells outta the ground and the two antlers, and the strange noises would draw in a lot of the deer that otherwise were not paying that much attention.
I also recall reading an article written by a guy that was running late, and decided to do a Bull-in-a-China-Shop run in to his stand, and he said he had at lest two bucks home in on the noise, before he really could get settled in...
Cats are not the only 'curious' creatures out there.
And, you really do have to adapt your style, to the local conditions! In North/Central Alberta, there were people bloody everywhere (oil patch), so the deer were well and truly used to stepping aside, and then carrying on with their day when the people went on past. They had their favored comfy spots to bed down, they had their favored food sources, and paths to and from, which become fairly easy to see at some times of the year.