Test of conservation of angular momentum in different simulations. (a) Resolved GC orbiting initially on a circular orbit with a radius of 10 kpc. (b) The same for point-mass GC. (c) Point mass GC orbiting initially on a circular orbit with a radius of 1 kpc. (d) Two models of Fornax initailly orbiting each other on circular trajectories with a relative separation of 10 kpc. (e) As in panel (c), but in addition the Fornax with the GC orbit a static MW. (f) Disky Fornax orbits a static MW in the simulation of tidal stirring (Sect. 6).