Who is this strange person?

Something very strange happened the other day! Someone came into our house that is not our owner! He seems nice though, he fed us so he can't be all bad! There was some funny smelling stuff on our coffee table in a bottle, it's gone now. So is he, not sure where he went but we hope he comes back again. Toby has discovered that our owner's pillow makes a nice bed - there might be fights with Trinny shortly over this!