We've all been there. That quick dash to the grocery store that turns into an impromptu rendezvous with friends, or maybe you forget to take things out of the car and inadvertently become a target for thieves. Before you know it, the backseat looks like a storage unit — or worse, you find your car's window smashed because you left something in plain sight and now have to deal with a hefty bill to get it replaced.
While it's easy to say "I'll get [insert item] out of the car tomorrow," not everything is car-friendly. Here are 15 things you should never keep in your car — and the reasons might surprise you.