Ancient graffiti

Rico says his friend Tex sends this:

Written across the wall of a cave were the following symbols:

It was considered a unique find, and the writings were said to be at least three thousand years old. The piece of stone was removed, brought to a museum, and archaeologists from around the world came to study the ancient symbols. They held a huge meeting, after months of conferences to discuss the meaning of the markings. The president of the Society pointed to the first drawing and said:
"This is a woman. We can see these people held women in high esteem.
"You can also tell they were intelligent, as the next symbol is a donkey, so they were smart enough to have animals to help them till the soil.
"The next drawing is a shovel, which means they had tools to help them.
"Even further proof of their high intelligence is the fish, which means that, if a famine hit the earth and food didn't grow, they could seek food from the sea.
"The last symbol appears to be the Star of David, which means they were evidently Hebrews."
The audience applauded enthusiastically.
Then a little old Jewish man stood up in the back of the room and said: "Idiots! Hebrew is read from right to left. It says: Holy mackerel, dig the ass on that chick".