Be very careful of crowded Metro ... pickpockets.

They tried it on with me, I felt the woman trying to remove wallet from front jeans pocket, her hand hidden under large bag.

ladrón (thief) is the word to shout.

I pinned her arms until she dropped the wallet.

(Accomplice tried to stand on it to hide it, my wife spotted this & picked it up)

I've travelled the world, this was my first bad experience, June 2008.