I'm willing to pay.
I'd really REALLY appreciate it.
I'd take really good care of it.
Keef provides other services to strange women for money all the time. I don't see why fins should be any different.
I need to go really fast.
Isaac generously shares his knowledge and gear with people from other teams. It would be a shame to be outdone by Isaac in yet another category.
It's scientifically important to test whether the fins work as effectively on the north coast as the south coast.
It would shut me up.