This is a classic lab trick
as long as you are using food to teach them, it serves them best not to learn. It's like believing in Father Xmas and as soon as you don't, the presents start drying up.
e.g. My dog learning to get constant biscuits: www.youtube.com/watch?v=G3Q1OO0VFhw
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unclepills, Tue 25 Jun 2019, 10:38,
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