The light curve resulting from a late jet–ejecta interaction in our toy model. The thin-red line is the bare SN light curve from Fig. 1, while the thin-blue line (lower line) is the contribution of the jet–ejecta interaction of the two opposite jets combined. The thick-blue line is the combined light curve during the activity phase of the jets. t_L, t_j,0, E_2c, and E_2j,rad are the launching time of the two opposite jets, the ‘mini-explosion’ time of the jets, the energy that the two jets deposit to the cocoons, and the extra energy radiated by the two cocoons. For the other parameters of this case, see the text and Table 1.