Pixie has been doing the weirdest thing lately. She was doing really well with the litter box training. The past couple days though she will jump up, run to the litter box to go, but only put her front paws in the box. The back end of her is still on the floor and so she has accidents directly next to the box. I hate to yell at her because she is going to the box but she just doesn't want to get all the way in. It looks so cute but I can't figure out why she is doing this now. Is she just being lazy because after she made the effort to walk to the box she doesn't want to get all the way in. It is the stangest thing. Anyone else's chis do this?