@bradlibum "I dare you to commit an act of selflessness without the recipient noticing"
@bradlibum A key step to public dares is minimising trauma to others.
Also, doing something anonymously goes against the usual habit of getting credit, so makes it a challenge even for people who usually do small acts of charity.
@DaveHiggins I actually like that because it could be awkward if they get caught. Depending on what they decide to do.