^ I'm thinking that is Steve McQueen in the great escape. I can't remember his character.
Also, in the Quentin Tarrantino movie, " Once upon a time in Hollywood " Leonardo DeCaprio played a scene in that movie in a German WW2 prisoner of war camp where he also said those lines.
I'm wondering if he was reprising that role in the great escape?
Let's see.
" the more they overthink the plumbing, the easier it is to stop up the drain. "