Sooo this pump truck shows up at the house with a crew of two to pump the septic. The truck owner and his apprentice, little Johnie. They remove the lid, put the hose in and start pumping. All goes well for a while but than it stops and whatever the truck owner tries, it just does not work. He has no choice, cloths off and in the septic tank he dives. After 20 seconds his head shows up from the liquid and says:

"Hey, Johnie, hand me the 9/16" wrench"

He takes it and dives in again, later on he comes for a hammer and another wrench and finally he gets out, tries it and the truck pumps like new.
Satisfied the truck owner is cleaning off all the @$#%# and says to his apprentice:

"Remember, Johnie, if you don't study and learn the business, you will be just handing wrenches all your life!!!"

So true!!! Thanks for a great laugh.

Hell and all a long I though that what apprentices were for.