That's funny! Why not? Where is his problem? Especially as a Senior Physio he should be confident enough to have his work supervised - or even be glad to be able to show off.My partner is a senior physio and doesn't really want to have to work supervised.
Supervision means that someone else will check on the work that you are doing. No, they will not sit next to you in every single treatment session, but might review your notes and counter-sign them, do regular peer reviews and clinical supervision. Amount and frequency is usually determined on a case by case basis.
You have probable got this, but it is quite a good reference:
http://www.physiotherapyboard.gov.au...uidelines.aspx
Second to last is the supervision guideline.
Hope this helps,
Fyzzio