What does the check valve do in the braking system?

[Hugo L.]

lol i think he's joking around. what he says is true. but it's also true of every other profession. think about it.

 

I know, yet understand his point.

 

In every profession, someone graduated with honors, and someone managed to barely make it, yet both have the same diploma.

 

But when someone has my safety in his hands, I'd prefer if the minimum grade was 85%...