Overgrown shrubs given a very very hard prune!

Back in the school garden Roger is attacking two large shrubs which have become too big, and one a golden Mexican orange bush (Choiya Sundance) is leaning over 'dangerously' so needs to cut back severely.
The other plants is a lovely bushy specimen of 'False Castor Oil Plant' (Fatsia Japonica) which has just got too tall and is covering some windows so needs cutting back too.
Some tips featured in the video
- deciding how far to cut back, and where to make the cut
- How to cut back to reduce the risk of damaging the plants
- Achieving a good balanced shape after pruning
- What time of year to prune
- After care - adding fertilizer