Left panel: cartoon of the possible scenario explaining the observed properties of B2 0258+35 and the host galaxy NGC 1167. The host galaxy is viewed edge-on. Right panel: synthetic radio (1.4 GHz) surface brightness map from the simulation of the jet entering an edge-on gas disc at an angle of 45°. The regions in yellow contours indicate the bright radio jets, while the blue contours are the diffuse radio emission produced by the plasma percolating through the gas disc. The image has been obtained at an arbitrary instance in the simulation for qualitative comparison. The remarkable similarity should be noted between the radio jets in this map (yellow contours) and the morphology of B2 0258+35 (Fig. 1 inset) in the absence of any fine-tuning. This further supports the proposed strong jet–ISM interaction in B2 0258+35.