Got a candy bar or can of soda stuck in the vending machine? Here are some simple steps to get that treat out of the machine.

[edit] Steps

Order another of the stuck item. Hopefully, the second item will push the first one through and you will have two candy bars!
Thump the side of the machine (carefully). You may succeed in shaking the stuck item loose.
Never hit the glass in the front of the machine; it could break and injure you and you could have to pay to repair it.
Do not shake, tilt or rock the vending machine back! They are very heavy and the machine could fall over, injuring or killing you.
Ask somebody. See if anybody around can offer you a refund or help to free the stuck item. If there is a phone number, call the vending machine company for assistance.
Push the flap in (where you reach in to collect your food) and let it snap shut. Sometimes the air created dislodges the stuck food item.

[edit] Tips

If you want, go ask someone who works at the place if you can have some money to get it unstuck.

Being extremely careful when bringing legs of the machine back down to the floor.
Beware of tipping over the machine, causing it to fall and crush you. Believe it or not, being crushed by falling vending machines is a very possible cause of death; it happens to people every year. More people die from falling vending machines than do shark attacks every year. (2 people a year compared to a technical .6 people a year)
Understand the risk of getting in trouble or a detention if trying this with a school vending machine as a student.
These methods will only work for a product that got stuck during the normal purchase process -- you usually can't acquire free food or drinks in this manner.
Don't kick it -- it's useless. The only thing you'll get is the shopkeeper (or who ever is in charge) angry.