Your dad sounds like he was pretty shrewd and a great person to have around. I'm sorry that he is no longer with you.

Here's some more imagery for you to ponder, maybe it will distract you for a minute or too.
My blue tits got fed caterpillars again today and the blackbirds got diced slug. I can't work out whether my wanton cruelty to invertebrates will cancel out all the good karma from my kindness to garden birds, perhaps that is why my progress is always one step forward one step back?