UptheChimney and chemenger - your workplaces sound like mine - in the teleporting between different campus within the span of 10 min.
whilst we're on the timetable issue - one of the recent debacles that happened... was we had a new prof join the group. another guy had left. So the commonsensical thing was to replace the old one with the new one. It was an 'introductory' topic which spans a whole load of stuff but it's doable by the new guy as well. What did internal timetabling then decide to do? they said well, new guy can teach half of existing guy's teaching (so effectively removing an existing colleague's teaching), give other stuff to existing colleague even though he's never taught that, just to give him new stuff to teach. It then involved so many other people, and when the new prof found out, he said 'er no, why don't I just do the stuff that the old guy used to do?'
oh and central university timetabling are very keen to exercise us - so very often you get one class at one end of the campus, and your follow on class, at the other end. and you have 10 min to get across.
and another example (whilst I'm at it!), I used to teach at the top of a tower block (no lift) and the classroom was just not big enough. Coincidentally, there was a classroom next to it, which was much bigger (but seemed to only have 10 students in it). I asked nicely for us to swap. They said no. there seemed no logic to it. So I ended up speaking to the tutor who was taking that class, and so for the rest of the term, we'd just use each other's classroom. Timetabling never knew - all the students did and just accepted it!