I concur with it all. I've been cut deep by broad heads and knives that were razor sharp. It doesn't hurt that day but just wait. It will throb later. Always good to have a tourniquet handy to slow the bleeding. You never know just how bad you are cut until it's time to irrigate it.
I've also had game animals jump at the hit and not realize they've been hit until they fall over. I recall hitting a nice buck that hardly moved. Looked at the arrow and was bleeding profusely to the point where I could see him pumping out blood from where I was standing. Had I not seen him bleeding out I would have thought I cleanly missed him.
