Overriding programming

Things I have done this week, despite their appearance on the list of Things You Just Don't Do:

1. Posted one of my best-loved possessions to a Stranger I Met On The Internet
2. Filled in my full name, address and telephone number on a web form in response to an email telling me I've won a prize

Number one is definitely the right thing to have done, but I'm a bit shaky about number two, even though, rationally, I'm fairly confident that it's not a scam.