A couple of times my mom would me a lunch box with a thermos. But, for some reason, thermoses and I did not get along. Within 24 hours I would always drop it, or hit it against something and break the damn thermos.
Even to this day, I cannot be trusted with a thermos. I take my coffee from home every morning. If I buy a thermos to carry it, I can guarantee that it will be broken within a week. When I buy a coffee carafe - it will last me for years.