Waiting for God-knows-what

How many hours have I spent waiting?

Waiting for the bus, a taxi, an aeroplane 

Before a concert

In an exam room when finished, or waiting to go in/start

In a Doctors waiting room

In a hospital waiting for treatment 

In a car waiting at traffic lights

In a supermarket checkout queue

Waiting for a concert/play/film/match to start

In an online queue

In a restaurant or a bar waiting to order, to be seated, to get served, then to pay

At home waiting for "an engineer" 

Waiting for the late Dr Bob

Im not even going to count the times that I should be doing something, but watched the clock down instead. 

It must be days, weeks, perhaps even years

To be human is to be a waiter. I guess I should be better at it by now.....