Facebook has a great way of really choosing advertising that fits the demographic of the user. Somehow it must have tracked that I sent Happy Birthday Wishes to my friend's dog and hence put this ad on the sidebar.
I checked out PetaPotty and it's pretty revolutionary. Maybe one day when I get a dog I'll get him a little grass patch to make him feel like he lives in suburbia and can pee on grass instead of streets.
The "Lifestyle" video is pretty funny too:
Interesting choice of music.