What to do in office on weekend

One would say to program programs. That's what I mostly do the other days. I sometimes do that at home too, but usually I play trumpet and piano there. And sometimes I do it in the office, especially when there are no people who risk to lost their mind listening for my improvisations. Basically because I do not know interesting melodies, I try to create them. Rarely succeed, but sometimes it is not that ugly. Couple of days ago I thought out a simple 3/4 rock-n-roll (this night I extended it to another 3 tonalities separated by fifths) - just major triads and then a scale part. Let's rock-n-roll But I feel something is missing there, something is not 100% complete. Eventually I will find.