Not only was I over-buying used clothing, I began buying new, too. If I liked something used but it wasn't in my size or sold to someone else, I'd obsess, unable to let go, stalking it like prey.

But McCarthy is only the second one-handed pianist to perform the piece at The Proms. The last, he says, was Wittgenstein himself in 1951. "It's really a full-circle moment," McCarthy said.

Kieran Dalkie, who was born with only one hand, is not letting it stop him when it comes to playing basketball. CTV’s Joey Slattery reports.