I have been hit by a can. A local cyclist was hit by a glass beer bottle but got plates and filed an assualt charge. When I ride I now practice getting at least a partial plate. With a very accurate description and partial plate I can give cops something to work with and believe me if a can hits me again I will have enough information to file harrassment charges.

FWIW- Austin is not bike friendly, I don't know how that rumor started but it is not. Even Lance's first book addresses the hostility he encountered in Texas. I was not surprised to read this, sadly.