I won't go into too many details, but suffice to say a few months ago a man was asking for donations for a charity, as a close relative was going to do a stunt. I said I would happily donate directly to the charity concerned when the stunt, which involved a plane, had been completed. That didn't go down too well at all as he wanted the money to go them, which made me suspicious. The stunt was completed and I donated as promised to the charity concerned. I knew the stunt would cost getting on for £500, having looked it up on-line. I then discovered that it had been paid for out of the donations, taking almost a third of the cash donated. This certainly hadn't been mentioned when the donations had been asked for.
The point I am making is that when people are doing stunts for charity and asking for donations, it is sensible to ask if any of the money donated is going to fund the stunt in question.