Teenage Son & Grocery Shopping

SO son did the grocery shopping yesterday for me. He agreed to do it so long as he didn't have to buy tampons. I told him to get what he though we'd need for the next week, week and a half. He did pretty good considering I didn't make a list. I sent him with 200 bucks. He shopped the grocery store twice. When the cart started to fill up, he worried he wouldn't have enough money and would embarress himself at the checkout line. So rahter than do anymore shopping, he checked out. The bill was 93 bucks. He unloaded the cart into the trunk, then went back into the store to shop some more. He spent a total of 153. He bought 2 dozen eggs, 4 boxes of waffles, 3 boxes of cereal and 8 muffins........I think we'll be ok for breakfast! Oh!.....and he bought 3 12 packs of toilet paper!