bad habits out in the open

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Is it smoking, cursing, biting your nails? Is it something different? Something weirder, grosser, harder to break? I personally have quite a few bad habits. I smoke, dring, bite nails, curse, haha I do it all. I have a few bad habits that are disgusting like not being afraid to burp in public, haha. Just curious if any of you are willing to discuss your bad habits in public. I would like to hear them!