Can airmchair experts please at least read the comics before they become...airmchair experts?
The whole 'disguise yourself by scent' is a MAJOR part of the comics. A MAJOR part. Scrapping it would be completely retarded. Not only is there the early foraging run where Rick and Neil get the idea, but later on Micchone meets ups with them having been travelling solo for months since the outbreak, and surviving by virtue of tying her dead boyfriend to one arm and her dead friend to the other arm (removing their jaws and arms so they can't attack her), hence using them as a stench shield to disguise herself against any zombies.
Pretty much any 'silly' characterisation was from the show, not the comics: the 'racist guy' isn't in the comics - Neil (the asian kid) rescues Rick from the tank via some suicidal climbing acrobatics (in the comics he's got a death-wish at that point - less a case of 'I hope someone repays the favour in future', more a case of 'I couldn't care less if I die right now'), and then they meet all the others back at base camp.
Shane is a lot more likeable in the comics as well. I REALLY hope they don't go down the road of making him violent/abusive/unlikeable as the 'other man' too soon - would really suck the 'I just cried inside' from a certain beautifully tragic confrontation between the main characters later on.
And WHAT THE HELL IS THIS 'ZOMBIES ARE SUPPOSED TO DO X' 'ZOMBIES ARE SUPPOSED TO RECOGNISE PEOPLE COVERED IN GORE' 'ZOMBIES ARE SUPPOSED TO DO CALCULUS' 'ZOMBIES ARE SUPPOSED TO......
...ZOMBIES AREN'T SUPPOSED TO DO ANYTHING OTHER THAN WHAT THE WRITERS FOR THIS PARTICULAR SERIES WANT THEM TO DO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Ok?
There'll be a few more zombie 'rules' that come up in the comics that will probably appear in the series, that might not be your cliched 'rules' - wherever you get those from (because they sure aren't from the Romero films).
Note the imobile zombie on the ground, with partial (but not full) brain damage. Limited mobility. That's the first clue to a rule that will come up later. Also note the difference in behaviour: roamers (or walkers, as they call them in the show) that travel the road in packs looking for prey vs lurkers who just hang in the area that they died in.
There's also a certain degree of desensitisation going on, and a tendency for some roamers to follow other roamers, who are just following whatever direction they were walking in last - so while a human is WAY faster on foot, unless he's crafty with his directions, he's going to hit a wall of pain when he stops to rest/sleep and about 500 roamers show up on his doorstep...