The receipts for food aren’t so that you can return it. They are for expenses record keeping. For example, some jobs have a food allowance; or special tax concessions for food bought while working. But to get those benefits you need to have evidence that you bought the food.
I was totally fine playing HL1, and HL2, and HL2 episode 1… but I never finished episode 2 because of motion sickness. The problem isn’t really with episode 2 though. The problem is just that I got old, and now I get motion sickness from FPS games that didn’t affect me before.
But I do know that not every FPS makes me sick. I think mouse-look smoothing helps. I’m not certain what else, but I’d try messing with the field-of-view angle and stuff like that.