He didn’t like doing it, but bonding with his child was a necessity and so he found himself playing make believe with the 4 year old boy. Nathan pretended to shoot the kid with a laser

"Actually, I went back in time and it doesn’t count" his son replied, refusing to admit defeat, causing Nathan to scoff and cross his arms

"The f*ck are you talking about? You just casually rip a hole in the space-time continuum? That’s irresponsible as shit pal."