Doctor and engineer joke

A pastor, a doctor and an engineer were waiting one morning for a particularly slow group of golfers. Engineer: What's with these guys? We must have been waiting for 15 minutes! Doctor: I don't know, but I've never seen such ineptitude! Pastor: Hey, here comes the greens keeper. Let's have a word with him. [dramatic pause] Hi George. Say, what's with that group ahead of us? They're rather slow, aren't they? George: Oh, yes, that's a group of blind fire fighters. They lost their sight saving our clubhouse from a fire last year, so we always let them play for free anytime.The group was silent for a moment. Pastor: That's so sad. I think I will say a special prayer for them tonight. Doctor: Good idea. And I'm going to contact my ophthalmologist buddy and see if there's anything he can do for them. Engineer: Why can't these guys play at night?