Laddie simply does not like Jamie the cat in his area… here’s a clip of 4 mo. old Laddie with his own solutions to various cat problems:
1. If I remove my bed, then Jamie can’t sleep in it.
2. If I tear up my bed, Jamie will never again sleep in it.
3. If I give Jamie the cat “what for”, he’ll leave my area forever.
4. If I remove my two rugs, then Jamie can’t sleep on those either.

Funny what goes through a Sheltie’s mind!