Have you ever struggled to get that liter of soda on the top shelf in a supermarket? A can? Anything? But you can't get it because you're too short? I get you. That's why I made some suggestions for you. It's tiring standing on your tippy toes trying to get taller by a few inches just to reach what you want. And at the end no matter how much you stretch you can't even reach so why struggle in the first place?
Rule #1 : stand on a shelf (make sure it's steady you don't want to fall on your face)
Rule #2: take a stick or something bigger than what you want to push it off of the shelf (be careful that the object doesn't fall on your head)
Rule #3: ask a tall stranger to get it for you ( a random person walking down the isle)
Rule #4: ask a worker, after all that's probably the most safest way to go. Even though they might get upset your putting them to work.