You should at least have him banned from the gym. As was said before, you may not even need to tell the whole story. Just tell the owner tha the was spankin it in the shower. And if this guy is not just fuking huge you should have just pounded him!! I mean c'omon!! Some guy nuts on your back and you have to ask if he is a fag??? You should have just turned around and punched him in the throat!! That prolly would have ended his whacking right then and there. I am not for gay bashing, but I am all for protection yourself from being assulted sexually or otherwise. No waiting to fight him...either pound him, or at least get him banned from the gym!!