Relationships are give-and-take, and when you're a tennis player, you're certainly not giving. You have to be self-absorbed. It has to be about you.
I regret the times I've been mean to people... It's fine to pick on people who can defend themselves and deserve it. Some people don't deserve to be picked on who I picked on, so I don't do it anymore.
Now Stan and I were still working in secret at that time but, because of this development, we had to inform the University of Utah because we thought that they might need to take patent protection.