other economic fellows

A banker is a fellow who lends you his umbrella when the sun is shining, and wants it back the minute it begins to rain. -Mark Twain

The above is a popular quip nowadays. Let me suggest some others.

• A deadbeat is a fellow who asks for a bushel of apples now, and pays back a bushel of cores later.
• A market victim is a fellow who waited to buy a snowshovel until the snowstorm, and now needs to sell it during the middle of summer.
• An insurer is a fellow who offers you a life jacket on the road, and offers you a spare tire on the ocean.
• A nation undergoing "quantitative easing" is a fellow who promises that his wares are popular, and demonstrates it by buying up a quarter of the merchandise himself.  
• A central banker in a time of crisis is a fellow who buys everyone's lit dynamite, and extinguishes all of it by unleashing a flood.