Put a shirt on
I actually get such bad second-hand embarrassment when I hear stories or see photos of him topless in a club. Like who takes their shirt off in a club? No one does that, with the exception of gay clubs where it's common - but I never go gay clubbing anymore. If I went clubbing and saw a guy standing there with no shirt on, NO ONE would be standing around him. Everyone would be backing away like "wtf...is that guy ok?"
You just don't take your shirt off in straight clubs. To say it's weird is such an understatement.
And I know he's not in a club here, but still, put a shirt on.