The ornamental design for a pettoilet, as shown and described.
FIG. 1 is a front perspective view of a pet toilet bearing our new design;
FIG. 2 is a front view of the pet toilet of FIG. 1;
FIG. 3 is a back view of the pet toilet of FIG. 1;
FIG. 4 is a right side view of the pet toilet of FIG. 1, the left side view being a mirror image of the right side view;
FIG. 5 is a top view of the pet toilet of FIG. 1;
FIG. 6 is a bottom view of the pet toilet of FIG. 1;
FIG. 7 is a cross-sectional view of the pet toilet taken along section lines 7-7′ in FIG. 5;
FIG. 8 is a cross-sectional view of the pet toilet taken along section lines 8-8′ in FIG. 5;
FIG. 9 is a front view of an excrement storage container that defines a bottom portion of the pet toilet of FIG. 1, the back view being similar to the front view;
FIG. 10 is a right side view of the excrement storage container of FIG. 9, the left side view being a mirror image of the right side view;
FIG. 11 is a top view of the excrement storage container of FIG. 9;
FIG. 12 is a bottom view of the excrement storage container of FIG. 9; and,
FIG. 13 is a cross-sectional view of the excrement storage container taken along section lines 13-13′ in FIG. 11.