Jake Randolph in "The Littlest Client" Pt. 22

Harrigan chuckled, "Did I really say that?"

"Yeah, and that's something I'd like to know. Why do we do that?"

Now it was Harrigan's turn, "Do what?"

"Bust each other's chops all the time. Why can't we just be friends like normal people?"

"We are friends, Jake. But I doubt either of us will ever be normal!"

"You really want to know why I'm a private detective?"

He stabbed the last of his beefsteak with his fork and popped it in his mouth, nodding as he chewed.

I looked him in the eyes, "Because, dear friend, I'm chasing a high."