Wow. This thread really has me thinking!
My dear Gardener...sounds like you are doing very well in this pro biz!
You are handling all the early possible pitfalls with grace and integrity!
I had to think about what I usually do in those types of situations, where it's obvious that a client is testing me....
My usual response is just to say..."I will do a general reading for you." (90% of my readings are anyway...) and I follow with "There are probably things that you want to know...and it's a good possibility that they will come up in this reading...
"However, often when I read the cards ,they will reveal what you
need to know...not neccessarily what you
want to know."
And then I flash them a grin.
It very often takes the whole "testing" out of the equation, because the client has to now decide for themselves if their question was something that the universe really needed them to know! Heh.
And anyway...their secret question DOES usually come out in the reading after all...but maybe not quite the way they wanted it answered.....
But oh! Lark! your story made my heart flutter in sympathy! Last year I had an almost identical experience...a woman who was belligerant throughout the reading, and after admitting she wanted to see how psychic I was...she then fired off five questions about her future...stuff like "am I going to get married next year?" and "will I have children?"
I had just pretty much answered all those things already in my long 9 card spread for her (though not directly... but the answers were there...)
I didin't have the luxury of telling her she had to pay for another reading(brilliant, BTW!) because this was a party situation, and she wasn't paying anyway.
So I turned over the next five cards, and said...
"No"
"Possibly"
'Yes"
"No"
and "Magic 8 crystal ball is a bit hazy...ask again later"
Then I handed her a crystal as a nice parting gift and said "next" because there was a long line behind her!
She looked a bit bewildered.
Her friends thought it was very funny, and since they were listening in on the reading...they knew I had pretty much finished telling her everything I could tell her.
Later the hostess said that she complained about me...but no one was really sympathetic to her whining.