The ornamental design for a scissors, as shown and described.
FIG. 1 is a front view of a scissors showing the new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a is a plan view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a 7—7 sectional view of FIG. 1; and,
FIG. 8 is a perspective view of the scissors.
The portions of the scissors illustrated in broken lines are included for the purpose of illustrating unclaimed subject matter and form no part of the claimed design.