What are some juicy dares?

Dare someone to go an entire day with their fly undone. If anyone mentions it, they have to say, "No, really, I prefer wearing it this way. Nice healthy breeze, you know?" Or, if you don't want to embarrass them, you just want to annoy, make them say, "And would you like fries with that?" at the end of every single question that they ask. OR, if you just want to be mean to them, make them say, "...in my pants" at the end of every single sentence they say. Including questions. For example, when it'll be their turn again, they'll say to the next person, "Okay, truth or dare? In my pants?" Really funny when someone asks them a question. If you think these are lame, I'm just saying ones that people are most likely to agree to because they don't have to get off of their lazy butts.