There was a guy in the late 80s, hit a puddle and slid and crumped his brain on the bike path in Newport Beach. An insurance-industry guy, USC grad, got $3 million from NB's citizens for an unreasonable hazard. You can find iit in the Pilot and LA Times/OC archives, this is a true story.
Watch those puddles on the OC MUPs. The money isn't worth it.