I just wondering , how can this type of mistake possible? I think fee are automatically being charged right. This is such huge huge mistake ever , I can't even imagine if that was me. Pheww. Looking at current btc price and 15 btc as fee. I'm going to shop and buy myself a rope. LoL !
Fees can be set manually if you desire that way you can decide if you want to add a big fee to get a very fast confirmation, or you can send a low fee if time is not really important, I think it was a mistake of someone who was new to sending bitcoins, that is why, even if you have lots of bitcoins you need to send a very low transaction first as a test.