It happens; I made a special bow for an acquaintance so he could gift it to one of his close friends. He was a serious and successful turkey hunter so I struck up a deal with him; I would give him the bow for free and he would give me his turkey wings for life. When the friend got the bow he was impressed enough to offer any wings he came up with as well.
The first turkey season after the deal was struck the guy gave me 5 wings, none from the bow recipient. The next year he said he didn't hunt much, the next he said he forgot, still none from the recipient.
It has been 15 years now and the 5 wings I got from the guy were it.
This guy was a preacher, unfortunately, I feel I have been burned three times by three different guys, all were preachers.