Types of Waste Management Engineers
From ancient China
1. Those in service of the Emperor
2. Registered professional engineers
3. Trained ones
4. Clever ones
5. Dumb ones
6. Grizzled ones
7. Independent ones
8. Those included in this classification
9. Those that tremble as if they were mad
10.Innumerable ones
10.Those drawn with a very fine camel hair brush
10.Et cetera
10.Those that have just broken the vase
10.Those that from afar look like flies