What do you think choking is xD. It doesn't go down your trachea and into your lungs. If so that would have to be a very small piece of ice and guess what, that'll melt almost instantly...
It could be because some ice machines create ice by suspending cold metal rods in water. After a while, an ball of ice forms around the tip, and a blast of air releases it, freeing the ice and leaving the long impression.... Unless, this was the entire idea behind this method
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