Embarrassment

0715 Dusseldorf to London on BA on Thursday morning - loaded in a timely fashion as ever (personally believe all Heathrow Ground Handling staff should spend time @ dusseldorf and learn a thing or two about brutal German efficiency!).
Doors on the point of closing, sitting in 9F minding my own business and chief lady purser strides down cabin with passenger printout and says "Mr S.... we have put you in the wrong seat - please move to 1F.
Now I am obeying company travelling policy (in economy) and checked in via the internet last night so I know I have put myself in the right seat - but the Pursar has obviously taken pity on a gold card holder sitting economy, so has upgraded me to business.
I have to admit for a micro-second I was elated (hot towels , cooked breakfast etc), which then turned to horroras I realised everyone on the plane was looking at me. I am forced to extract from the packed lockers my 2 bits of hand luggage (one of which is illegal in economy) and move right to front of the plane.
You feel people thinking in economy "lucky bas#@rd etc" and people in Business class thinking "he's not paid the fare". What makes it worse is that business class is 50% empty but the purser moves no one else ......