Well the language PC police are alive and well. Just heard on the morning news that passengers complained and police removed a NWA Captain from the flight because he was using foul language (F word) in the cockpit. NWA had to cancell the flight. Next thing will be "authorities" listening to cockpit tapes after each flight to determine if charges should be brought.
It may not be "professional" but removal like being a "Threat to the flight" is really dumb.