I was not interested in his phone until my eyes were drawn to the image of some great big jubbly boobies staring back at me.

I’m sure you’ve encountered the phenomenon of noticing something unusual within your line of sight.

If you’re going to engage with such content in public with such disregard that others’ gaze may be drawn to it, then you deserve to receive whatever wisdom or drivel may spill from those onlookers lips.

And you’re right, there is nothing stopping anyone from talking to me. I accept their intrusion into my space as a peril of being in public. If you climb through my window to speak to me, that is a different matter.