Cut the bottom off a plastic pot to contain invasive plants & bury in the ground. I have been doing this for a few years & works great for containing plants that tend to spread, but that I still want to plant in the garden. This also works good for planting a plant in an area that tends to get filled with roots etc. from other plants. I will use a larger pot so that the plant can spread it's roots and grow deeper roots, but keeps other tree roots from choking out the one I planted.
All of us have been conditioned, even though we may not put it in such crass terms, to believe that if you love me six units, I should love you at most six units in return. I can feel secure in loving you six units because you have already committed yourself that far. But if you get annoyed with me and stomp out, slamming the door, I should pull back, at least temporarily, my six units of love.