I was helping my dad in the garden when I was I a kid. While planting potato slips I noticed dad would step on them and press them into the ground as he planted... I noticed this and ask hm why. He said "If you step on them , the potatoes will grow as big as your foot"
I said, " why don't you just set on them and we won't have to plant as many? ... That's when things went down hill pretty quick.
