1.   A musician who has a memory slip, and no score to quickly check, might be embarrassed.

2.   Having the score onstage, they say, is a security blanket that helps stave off memory slips.

3.   In a lesser field, minor memory slips might not mean anything.

4.   In one famous if possibly apocryphal story, Fritz Kreisler had a memory slip while playing a Beethoven violin sonata with Sergei Rachmaninoff.

5.   Memory slips may result.