Why do actors not want production to yell cut when they are laughing/fumbling their lines?

Question

When I watch blooper reels of TV shows, if an actor keeps dropping a prop or messing up a line, and is laughing, they all say something to the effect: “Don’t cut!! Keep rolling!! Don’t cut!! I’ll get it right.” Why do they care so much about this? I can only assume it adds a lot more time to their day if they keep having to “cut” and restart…. But why?

In: Other

Answer 1

A short flub can be edited out, but once there is an official end to filming that scene, someone may want to go to the bathroom, or want a freshen-up on their makeup, etc…