Working sucks so bad... I keep spending 13 on lunch a day too just so I don't have to eat in the break room because those people talk too much and I don't like being bothered when I eat. I need some good lunch ideas to save money :/ Also I am really building a dislike for old people, they are so rude.
They do tend to have an "I'm better then you because I'm older" mind set often times.
Sandwiches, soups, pritty much anything you can buy that you can streach out over multiple days and can make yourself easily is a good way to save some money. You can always try eating elsewhere or just telling them you prefer eating alone. It's not that uncommon that they should be offended by it.