Are you crazy or something?你是疯了还是怎么了？

You can probably clean that stain with club soda or something. [=or something like that]你可能可以用苏打水或类似的东西去掉那块污渍。

The man wearing the badge must be a guard or something.戴徽章的那名男子一定是保安之类的人。

Can I get you a glass of wine or something?我给你倒杯红酒或别的什么酒好吗？