Scenario:
You are a dispatcher. You are in charge of 5 officers, 6 phone lines, filing, a fire department, and an amublance service. Keep track of all of it at once.

You have an ambulance call, a fire and a domestic going on. You must know where everybody is at all times, and what they are doing. People calling about all situations....wanting to either report it or just know what is going on.....

Then the lady calls and wants someone to get her cat out of the tree....
Since you are a dispatcher you do NOT have a weapon. A squirrelly looking guy walks in the front door and DEMANDS to see an officer NOW....you try to explain....he goes ballistic and puts his hand in his coat pocket.....now what do you do?

Oh, I forgot the teletypes coming in that you have to read and decide what to do with.....instantly.

Deal with this up to 12 hrs a day because the dept is short handed, people off sick...etc....go ahead, you try it. See how long you can do it.