Sir "iringk" 4c% w. g gkdedu, Ukraine

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I am a teacher.
I teach the funniest subject in the entire university:
Water supply and sewerage.(//tractor-service.com)
And, of course, the students are happy. For example:
The girl gets a question: "engineering structures placed on sewage networks"
The answer is short and very comprehensive:
HAVONOMETER......

I gave her a five for that later. A sense of humor is a good thing.