Panels a) and b): evolution of metal mass in both model galaxies as a function of simulation time for interactions with clusters A or B, respectively. The solid lines indicate the metal mass in both gas and newly formed stars that are gravitationally bound to the galaxy, whereas the dashed lines give the metal mass locked up only in newly formed stars. The dotted lines indicate the metal mass in the stripped gas wake. Panel c): metallicity histograms of stripped gas (considering gas cells not gravitationally bound to the galaxy anymore and with ISM mass fraction >1%) as a function of time. The colour encodes the mass fraction in each metallicity bin of the total gas mass stripped for each timestep. The black solid line shows the mean metallicity value of the gas cells in the histogram, while the dashed line indicates Z_⊙.