1. Dogs are naturally crepuscular. This term refers to a species which is active at twilight, that is to say, at dawn and at dusk. (Cf. the more familiar terms nocturnal and diurnal, referring to animals which are active mainly at night and mainly during the day.)
2. This is a natural feature of dogs which makes them a suitable species for domestication as companion animals by a species such as my own, which naturally pursues full-time work outside the home.
3. Therefore, even if I am working at home, it is appropriate for you to expect entertainment in the evening when the workday is over.
4. So please LIE DOWN and stop jumping up with anticipation every time I get up from the computer. Thank you.