As one of those front seat people find that disturbing (Although I am military not civvy driver) We have a few of them probably more percentage than you lot due to the good old rank thing. We tend to find taking them aside one night on a stopover some where and telling him/her that they are a grade A nob and if they dont't wake up and smell the coffee they will get A. A kicking or B. A report to the CRM (think thats the multi crew people for you)peeps and any comeback on this little chat will be met with you me in front of boss. Some tend to think that as a Capt they are the dogs bollocks so company will fall on their side. Seen that theory go west about four times now, so stick to your guns be suprised how companies can actually see through arrogance.