Is it all dangerous there?
no, most places are safe but obviously some people get robbed(which it is common in all the world if you ask me),
Is the tap water unsafe to drink there?
yes and no, I don't drink tap water, but, people who does don't have any consequences since they have built a tolerance againts that water( mostly poor people)
Are you short?
no
Are your friends short?
some of them.
Domo thanks for the help and yes you are right in that aspect, eventhough Mexican Spanish and Spain spanish speak the same language, some mexican words have different use and definition, even the bad words are different.
Pyru I didn't undestood your question use other words