SERVICE???

I became confused when I heard these terms with reference to the word 'service'.

Internal Revenue 'Service'
U.S. Postal 'Service'
Telephone 'Service'
Cable 'Service'
Civil 'Service'
Customer 'Service'
State, City & County Public 'Service'

This is not what I thought 'service' meant?

But today, I overheard two farmers talking, and one of them said he had hired a bull to come 'service' a few cows.

BAM!!! It all came into focus. Now I understand what all those 'service' agencies are doing to us!