A Shame, is this common?

[Kowsrule30]

I only had to leave one over night.... A small BT buck I shot just before dark..... Watched it drop and didn't see it get up or move... Pitch dark before I got there..... I had a flash light but couldn't find it in the 3'-5' tall brush mixed with some scotch broom and grass..... Came back the next am at first light and shot a yote from the same place I shot the deer from..... Got over there and the yote was a foot or so away from my deer.... Guess he just found it.... Got lucky.... And I was pretty much standing on top of the buck and walked over it several times the night before...... Just blended in so well couldn't tell the difference between him and the vegetation....    

[JLS]

Another thing to consider is, the longer you wait, the more likely the wound will plug up and there will be no blood trail to follow. 

Back east where this is popular,  you push an animal and it goes onto some other property you don't have permission to hunt. So they hope by not pushing it, it will die on the property they can hunt.

Give it a few minutes to settle down, cuz it doesn't even know what happened. Then follow the blood trail slowly just like you're still hunting and if need be, get another shot into it.

If it's dark, this is not only difficult but also illegal.

Edit:  Shooting it again after dark would be illegal, not following it.

Also, by your own logic of the bleeding slowing and/or stopping over time, doesn't this make it all the more important you don't bump it out of it's bed?  I've learned this the hard way.

[Sitka_Blacktail]

Then that's where you have to decide if it's worth taking a shot and losing a wounded animal. There's always another day and another animal or another chance at the same one. If you aren't positive of putting it down, you shouldn't be shooting that late.