I also did, and still do a little, technology consultancy in retirement, and did for the last 9 years, all on request oldgit .

Some would say that I was mad when I returned to a company for 3 years part time where I had once been a Divisional MD, to help out in a technical role of the most basic hands on work work .

Not being of the 'Do you know who I am/was' brigade, I did not have a problem and I am sure the Tax Man enjoyed the extra takings hide.

http://franks4x4-solograndetour.blogspot.co.uk/
Combat Stress-http://www.justgiving.com/Roadster100