Sponsored Dinner

I had to loitered around Leeds all afternoon between shopping and dinner.  I ended up in a bookkeeper.  I just sat in the warmth for many minutes.  I have tried to check the tennis results,  but the computer was playing up.  Then I spotted something called Bingo King, and I was trying to work out how it works.  At a glance, I thought, "this has a very good odd to win!"  Then I picked up the slip and read the basic rules, and took another betting sheet to work out the odds.  As an experiement to check out my mathematics, I put GBP 1 stake.  And I walked out with GBP 7, that sponsored my dinner, yay!