It's well known round my area, that the ice cream tinkle, means kids have access to drugs, cigarettes, and alcohol, so maybe that icecream seller was so far out of his zone, that he thought a '99' was a new type of 'e'? Rather than a air filled ice cream, fitted into a cone, with sprinkles on, and a flake?
When you bite down, to discover the taste of vanilla, and taste the cream, it was Maggie Thatcher, that invented that ice cream, so it was full of air molecules, so that half the volume could be sold at the same price as a full measure?
And when you buy ice cream from the shop, if it has ice particles in it, it should be taken back, as it has been refrozen. So you get less product than the suppliers said, most is ice, not icecream. I can make my own ice, thankyou.