Don't even think twice about your decision there Bob. 15 acres?? If you told me that you and your son had this place that was fifteen acres, I would not be brazen enough to even ask for permission to hunt it. No reasonable hunter worth his salt would imho. It might be different if this was a guy you knew well and had hunted with before that had some bad luck story, but a stranger, NO WAY!

I'm with Hillbillyhunter, if the guy knew it was only 15 acres and still tries to impose on you then how respectful do you think he's going to be once he's actually hunting the property?