How does a student fail clinical?

Other than being late, not showing up, and not completing assignments, what are some ways that a student can fail clinicals? I’ve read so many horror stories about instructors failing their students for the smallest mistakes. What does it actually mean to fail a clinical? Is it going to be reflected on their transcript? Also, what happens AFTERWARDS? Do they continue attending clinicals for the rest of the semester even though they know they’ll get an unsatisfactory grade, or do they sit out for the rest of that semester and “repeat” the clinicals next semester?