I have my first Leopard Gecko for about a month now. I feed her crickets I get from Petland Discount and keep a veggie dish in the tank, but she never eats the veggies. On my last trip to buy more crickets, I thought I might get some mealworms too to add some variety to her diet. The salesperson told me that Leopard Geckos are liable to swallow mealworms whole without chewing them; and then the still alive mealworms can chew through the Gecko from the inside out. Consequently, I didn't buy any mealworms. I bought some wax worms instead.