should also show them how much you can go into the red by under estimating the time/fees involved in a project...there is an art to feeling out how much hand holding specific clients may or may not need and to plan accordingly.
I taught ProPractice (U.S.) and showed the students a typical type of small project an architect just starting out on their own might do: renovation of an existing building into a boutique store. I did a breakdown of typical project phases (Schematic, Development, Documents, Bidding Assistance, Construction Observation) and how much time each phase woudl take, then broke that out into percentages of the overall fee. That all went pretty well, but then I showed them how many jobs of that scale they would have to do every year to earn a reasonable middle class income (I used $60,000/year, this was several years ago) and their mouths all dropped.