How many adults does it take to change a nappy?

I'm feeling slightly more normal now so shall attempt to give you all a run down of my first few days in Brisvegas...

I had a very eager Trish & Blair (aka Mum & Dad) waiting for me as I walked through the arrivals gate at Brisbane International Airport - we both marked the occassion with a photograph of each other taking a photograph of each other, if you know what I mean...And then it was straight to Dunk & Tash's to meet baby Isla...this is the first pic of us meeting for the first time....as you can tell, I was more than excited !!
That night mum and dad whipped out the Barbie and we had some reles round (see, already I've lapsed into Australian speak) for a good old fashioned Aussie BBQ....

I dutifully handed over all the presents from Aunty Libby... (which Isla loved)

Highlight of the evening was watching my brother change Isla's nappy....the answer to my question is that it takes not 1, not 2 or 3 or 4 but 5 adults (including me taking the picture) to change a baby's nappy !!