The product (watermelon produced by Mexico) which we had bought in this store was very poor quality, not sweet (as it was promised), and contained of nitrates and pesticides. After we had eaten it, we had a stomach ache and other health problem related to it.

When I brought it back, the "owner" (as he introduced himself) was rude, started arguing, asked his coworkers to "try it" to confirm that the watermelon was good and sweet and didn't apologize. Even more, he said that I should not come to his place anymore.