Sara, Phred is right! The pill popper saved my life and my arms and hands when I needed it.

I found that if you aren't standing right in front of the litter box and check before they cover it up - you will never see a worm.

However, the giveway was the specks of "sesame seeds" where they had been sleeping.

My poor kitties always get the supervision when they use the litter box and they are never happy about it.