I have poop tasters too! I have tried EVERYTHING...
ACCENT
Forbid
Deter
Spinach
Zuccinni
Pineapple
STOP - by Solid Gold
Hot sauce on and in the poop
Hot horseradish on and in the poop
Bitter apple on the poop
I have had no luck at 100% stopping the habit! They are much better though, they are only 'tasters' rather full meal eaters
I just try to get it first. I kinda know the pooping time and signals...they smell each others butt, I guess the poop is right there, then I know - it's coming soon. Then when they do poop, I PRAISE and PRAISE and give a SPECIAL TREAT (after we pick up the poop and flush it
)
GOOD LUCK!