A mexican was sitting on the corner, and a tourist came up to him and asked -
"Do you know the time?"
"Yes" said the mexican and leaned over and lifted up his donkeys balls, and looked and said that it was about two thirty,
the tourist then said "Wow, how could you tell time by doing that?"
The mexican lifted up the donkeys balls, agian and told the tourist to lean over look, and said "you see that clock over there?