RE: liscense numbers on hunters for or against
'Eh, forgetting the 'back tag' at home and only realizing it once you get to your huntin' property, forgetting to transfer it to the garment you intend to wear that day according to the weather, losing it afield, pokin' holes in your expensive goretex, etc...no thanks.
Here's a tip, keep with you at all times a cell phone and all of the telephone numbers of the local authorities...heck, carry your GPS and give 'em the coordinates if it's that serious a situation.