Broke a finger from a sudden ukemi after getting my foot caught in a partners hakama. Luckily it wasn't the middle one so my powers of expression weren't disabled.
Whos fault? Mine (bad ukemi), partners (senior), hakamas? Irrelelavent really, I'd look at in in terms of risk asessment. I.e. Does the benefit of crossing the road outweigh the risk of getting hit by a bus? I'd admit its difficult weighing safety and tradition, but traditions should be careully considered from time to time.
In the end I sued my foot.