I work for a small agency where I report directly to the founder. I strongly suspect he has ADHD and anger issues. Today he had a temper tantrum with a support rep for one of our vendors. They immediately terminated our hosting account because my boss was being verbally abusive. Thanks to my boss's temper tantrum, I had to handle support calls from upset clients whose sites were down thanks to my boss's "maturity fail".
What's the best way to handle this situation in terms of "managing up" to my boss. If he reported to me I would have given him a written warning and sent him home for a few days of unpaid leave.
The power dynamic between us is weird. He should be giving me direction and setting the example for me to follow. How can I encourage my boss to handle things in a constructive way?