There's absolutely nothing that would surprise me nowadays about what one might see other people do anywhere or anytime. Sadly, we are living in a time when the majority of people want a free ride and are totally unwilling to pay their dues or learn to do anything for themselves. Something in their warped brains somehow deduces that observing you catching fish is akin to doing their own research and that that's totally Okay... and so is sharing your fishing spot with you.
Now, I would remind you in the current day of social communing and political correctness... you shouldn't call 'em men... you should call 'em persons or co-humans.
We should never use the English language or certain pronouns (therein) to (in any way) show gender bias of any kind.
That's my prayer to all. Amen & Awomen