A self-heating lunchbox seems like a good idea. A hot lunch I can pack away until I want to eat it? Sounds great!

However, there are a few things you have to consider if you get one of these heater boxes. First, not everything is going to do well under heat for a long time (looking at you, Tupperware). Second, some things that you think might be good in a heater actually aren’t. A chief example of this, as this truck driver learned, is canned cuisine. If you’re not careful, like this guy, you might not actually get to eat your tasty treat. Instead, you might end up spending all night picking SpaghettiO’s out of your car’s carpet.