Not picking on XBOW hunters at all here, but I have butchered a few hundred deer in my lifetime and probably came across 10 or so deer that healed up from a brisket shot with an XBOW bolt still in it. I guess it makes sense since you can get good setups on the ground using a crossbow and are more likely to encounter that shot. I think quite a few people just dont understand anatomy and what their weapon is capable of doing. Of course this was before todays newer xwbows that shoot really fast . I think the key is having a little angle to exit closer to a shoulder