Patience - an advantage or weakness

"A handful of patience is worth more than a bushel of brains."

Sounds interesting but what happens when this patience is taken for granted. Most common example is the ladies shopping in a shopping mall. Patience is directly proportional to money spent. Recently I lost something bcoz I was very patient and then i realize that at times its good to be aggressive otherwise there are ppl around you to snatch away things.

There should be a device patiencometer to measure the level of patience. Then we can define the max, min, avg and ideal patience at different times.