Using facebook on Jennifer's Dad's Laptop connected by my phone acting as a wifi hotspot (my phone can charge this way) on 3g in Portugal. I was confronted by facebook saying my account had been suspended to unlock it i had a choice of using a security question or this novel way I chose which was to identify my friends which was quite fun. I've included a screenshot and below the information that facebook emailed me. I thought that was quite cool.
Dear Sam Stow, Your Facebook account was recently logged into from a computer, mobile device or other location you've never used before. For your protection, we've temporarily locked your account until you can review this activity and make sure no one is using your account without your permission. Did you log into Facebook from a new device or an unusual location? - If this was not you, please log into Facebook from your computer and follow the instructions provided to help you control your account information. - If this was you, there's no need to worry. Simply log into Facebook again to get back into your account. For more information, visit our Help Centre here: http://www.facebook.com/help/?topic=account_recovery Thanks, Facebook Security Team