one of the behavior signs of arrogance is being late. late to press conferences, speeches, etc.
of course, it can mean that you are totally disorganized....but that's what you have people for.....
If you think is his arrogance is showing now, wait 6 months. I hate to make the comparison (again) but Hitler started out a bit orrogant and then got more so. Since he had his party controlling the assembly they passed whatever he demanded, including making him a dictator.
Our "Blackberry" tekkie President is not disorganized, so that leaves the arrogance.
I was afraid he was going to start of being high handed in his actions as President, my surprise was that it took more than 24 hours.
There's more to come.......