Time violation is always fun in casual play if your playing with a slow player who pissing off the group.
You can really get in their head if someone is standing 30 feet off to their side looking at their watch every time they throw.
For a fast moving causal round you can also step it up to 15 seconds.
In reality, it is good to use the time violation in casual play. Don't get in the habit of playing slow or you might get stroked at a tournament for it.