Like others, I don’t believe deer pay much attention to other dead deer, at least most of the time. Last year I shot a doe and it went forty yards back down the trail and died. Five minutes later two doe’s and a yearling stepped over the doe and followed the trail (covered with blood) on their way to my stand. The fawn stopped to sniff it, but the full grown deer didn’t pay any attention to it (Yes, I did shoot one of the doe’s). Other times I have had deer snort and stomp as they side stepped a half circle around a recently killed deer and then proceed on high alert. Regarding gut piles, I haven’t seen them deter many deer until the mocking birds and/or ravens get to it, then all the movement they make flying around makes the deer skirt the gut pile. One thing I try to do after shooting a deer is finish out my hunt (provided I have more tags), it has given me numerous opportunities at a second, or on several occasions a third deer, while giving the animal longer to bleed out.