How often have you settled down for dinner at home or in a restaurant and tried to put a dollop of ketchup or mayonnaise on your burger or alongside your fries, only to find that nothing drips out. Then, when you wallop the bottle in frustration, it suddenly squirts all over the table! The problem only exacerbates as the amount of ketchup in the bottle depletes. In fact, very few people can honestly say that they have ever succeeded it emptying the bottle down to the very last drop. Now, thanks to some Massachusetts Institute of Technology researchers that day may not be far off.