Can you get sued for reselling a product?

Sure, here's a description simulating the tone of a questioner, based on the paragraph "Can you get sued for reselling a product?": "Hey there, I've been wondering something about reselling products. You know, buying something and then selling it for a profit. Is there any risk of getting sued for doing that? I mean, do I need to worry about legal issues or anything like that? I've heard stories about people getting in trouble for reselling items, so I just want to make sure I'm not doing anything wrong. Can you help me out with this?