Brilliantly sarcastic responses to completely well meaning signs

This picture montage comes from a link at Someecards.com, which is good for spending hours on as it is. It's a collection of signs, flyers, and billboards that have been substantially improved by people with a magic marker or can of spray paint. Or they've at least cranked up the schnarkiness level considerably.

Quote du jour

Seen on the Internet:

Mark Zuckerberg screwed over his classmates and his best friend. Do you honestly think he cares about your opinion on the new layout?

Hedtke's Law #12

I should've remembered this one ages ago. I think I started saying this in the early 80s if not before. I don't know where it comes from or if I coined it, but I've never heard anyone else say it, so it's mine now! mwahahahahaaaaaaaaa!

Hedtke's Law #12: Life is like a rose bush. Enjoy the flowers and ignore the occasional prick.