I don't have these where I'm from but when I went to the beach in South Carolina I walked through someone's yard and thought I walked into an ant hill and broken glass. There were nearly thirty on each foot. One of the scariest things I've experienced.
That moment when you're a six year old little girl having fun barefoot on a lawn when BOOM bindis, thorns, a freaking bee and don't even get me started on the bloody pregnant snail.
*shudders*
If so, then I'm glad we don't have them.