Firemen

Three friends, a priest, a physician and an engineer, play golf together every week. One week, they're playing and the threesome in front of them is driving them crazy - the guys are taking forever, hitting their shots all over the course and dawdling - and they won't wave our friends through.
The guys are getting really frustrated and then the priest sees the course manager, and shouts "Hey, Carlo, can you come here a second?"
"Carlo, these guys in front of us are infuriating - they're taking forever on each hole, hitting their balls all over the place, and they won't wave us through!"
Carlo says, "Oh, don't you know those guys? They're the three firemen who fought that fire in our clubhouse about three years ago. They were all blinded in the fire and now we always let them play for free."
The priest says, "Oh, that's terrible! I have an idea - This Sunday, I'm going to have my parish say a special Mass for them".
And the physician says "That's a great idea. And I have a friend who's a top-notch retinal surgeon - I'll have him give them a special consult to see if there's anything he can do for the."
And the engineer says, "Why can't these guys play at night?"