More mundanely speaking, I can tell you from personal experience that it's easy to pick things up without thinking about it: if the previous patron at a place had accidentally left their keys on the counter, it would be all too easy for you to slip them into your pocket on autopilot, your kinesthetic memory doing the thing of making sure to put away your keys (the previous person's kinesthetic memory was obviously on holiday...)--only, they weren't yours.
I like your suggestion, though, that they'll open a drawer that doesn't yet exist.
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More mundanely speaking, I can tell you from personal experience that it's easy to pick things up without thinking about it: if the previous patron at a place had accidentally left their keys on the counter, it would be all too easy for you to slip them into your pocket on autopilot, your kinesthetic memory doing the thing of making sure to put away your keys (the previous person's kinesthetic memory was obviously on holiday...)--only, they weren't yours.
I like your suggestion, though, that they'll open a drawer that doesn't yet exist.