It speaks volumes about you Apollo-ites when physical assault is deemed a "wonderfully satisfying moment"!
Sibrel is not blameless in this, either. He called nim a coward, liar, and thief. He certainly pestered him.
It still doesn't justify a physical assault. No matter who does it.
Another astronaut kicked Sibrel, which is also considered (by law) as physical assault. But much worse is making death threats. Both the astronaut and his son made death threats. And no, don't tell me they were 'just joking around'. That's nonsense. They were clearly seeing red at the time. He'd already kicked Sibrel.
That's quite revealing, also.