I am leery of folks attempting to close wounds on their own...wounds that probably need stitches. How do you really know you've cleaned it properly? I know some folks who are more than ready to dump some superglue on any large cut...and such practices may do more harm than good.
First aid/first responder training is always a good idea for those of us who spend time in the backcountry. Without basic training, we run the risk of making a bad situation worse...infections and the like.