*door slams*
- Huh, son? You're home already? How was school?
- SCREW THIS STUPID ARM! Z shouted with anger while detaching his arm and tossing it to the ground. It's the fifth time this week already, it keeps malfunctioning on and on! It brought me only problems, rather than solving them. I'm better without it!
Johannes leaves the engine that he was repairing and lifts the arm from the floor.
- Come close, Zhang. Pay attention.
Slowly detaching the casing, Z's father pulls out some wires, replaces some broken parts with new ones and puts all back together.
- Try it now!
- Hmm... seems to be working now... But who knows if tomorrow it wouldn't break again!
- This is how things are, Zhang. Even people break sometimes, but tossing them on the ground will leave them worse than before. Rather you can try to repair them, as much as you can. It's true that with people things aren't that easy though, but when it comes to machines and mechanical parts, I can show you how to do that. Come here, in my workshop, after you finish your homeworks, and I'll show you how to tend your arm in such way that it will become not a burden but a valuable asset!
From that day Z regularly joined his dad in his workshop, helping him and learning about machines, how mechanisms work, engines and much more.
A conversation between father and son