Ladies and Gents, what is the one thing that your partner does that you find completely disgusting?

Not talking beat you or abuses type of thing but just a trait and habit that you just can't stand. Can be either in the bedroom during a session or just in normal company, say out for a drink.
Ladies and Gents, what is the one thing that your partner does that you find completely disgusting?
Ladies and Gents, what is the one thing that your partner does that you find completely disgusting?
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