Hey, I work at Petco! I am offended!
Actually, I do work there, and no I am not offended. Petco is worthless. I know more then the "Fish Expert." I have stood next to him as he recommended guppies and mollies to go in with the tiger barbs the woman was buying for her tank. Tried to say something, and he responded with "No. It will be fine. They are all community fish."
I love asking him what does he like better, then name the common name of a fish compared with the scientific name. He assumes they are 2 different fish. Unfortunately, this means only I know he is an idiot, as noone else knows the scientific names =(