Rod for my own back?

I am taking Mathew fishing tomorrow!
I have no idea how this will go, but we were invited along by a kindly friend, and for some reason Mathew got very excited by the opportunity, so we will be sitting by the river for a couple of hours trying to wrench fish from their natural habitat by luring them onto a hook. Sounds awful when I put it like that, and maybe something that my 6-year-old shouldn't be encouraged to do, but the main thing is that we'll be out in the open air, together, and both learning something new.
My main worry, beyond the obvious discomfort for the prey, is that I'll have an energetic youngster within inches of a flowing body of water, and I think I might spend all day in a state of high anxiety as I wait to hear a scream and a splosh, which would be followed by me sprinting along the riverbank in a desperate attempt to overtake him and be able to grab him before he drowns or disappears to the Netherlands. I think I may have had a dream about that only this year.
Anyway, wish me luck, and send me good wishes, and I shall let you know how it goes tomorrow....

RC 23-8-25