spuds ... thanks for the link on the unbreakable umbrella. pretty interesting. it's not cheap - but I might look into it.

a stick is particularly useful for defense against animals ... mean dogs, stray critters that look sick or rabid.

a walking cane is unlikely to attract much attention from the police. there are rattan canes on the market - I just don't happen to own one so I can't swear as to how strong they are.

cheers,
Pete2