We claim the ornamental design for a disposition monitor, as shown and described.
FIG. 1 is a front perspective view of the invention having a window display in a first status reporting position.
FIG. 2 is a front plan view of the invention in a first status reporting position.
FIG. 3 is a left side plan view of the invention in a first status reporting position.
FIG. 4 is a right side plan view of the invention in a first status reporting position.
FIG. 5 is a top plan view of the invention in a first status reporting position.
FIG. 6 is a rear plan view of the invention in a first status reporting position; and,
FIG. 7 is a front perspective view of the invention with the window display having been moved from the first status reporting position to the second status reporting position.