Thanks for inviting to play with me but I have retired from playing. I just like to talk nonsense here and there.

Even if I were to play with you, I am currently low form and rusty. If you beat me, it is because I am low form. If you lose to me, it is because you are either at lower form or you are simple too weak. It is not fair for me to play with you when I am low form.
Hehe sorry friend, just a lousy joke.