That really depends on the snake, mine don't really, just don't go near them with the tongs and if they have been tap trained they they will know its not feed time anyway.
mine are all in the same room and not all are fed at the same time due to there varying ages, some weekly,some every other week and monthly on my adults and some may be in shed etc, which will throw them out of your normal feeding schedule anyway
Hope this helps
Cheers rich
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