Upper panel: percentage of different interaction outcomes for each cluster type. From left to right: (i) flyby events, (ii) exchanges in which the intruder replaces the secondary BH, (iii) exchanges in which the intruder replaces the primary BH, (iv) ionisations, and (v) unstable triples. Lower panel: percentage of BBH mergers. From left to right: (i) BBH mergers occurring after a flyby, (ii) an exchange interaction with the secondary BH replaced by the intruder, (iii) an exchange with the primary BH replaced by the intruder, and (iv) second-generation BBH mergers. In both the upper and lower panels, the colours mark the cluster type in which the interaction takes place.