Thanks for the links Ruth.
I answered a phone call today, something I rarely do.
Caller "Am I speaking to Mrs Jo"
Me " No"
Caller "We need to deliver some cash to you today will you be in"
Me "I think you have the wrong number"
Caller "No the cash is definitely for you, I just need to check we have the correct postcode and I need to confirm that you will be in"
Me "Can you swim?
Caller "I don't understand"
Me " I live on a boat, you will have to swim out to deliver the cash"