I use the same technique my dad used when he would rescue a crate that fell off the top of his truck while hauling in a load of artichokes from the Delta to the packing shed. (It's amazing how many crates fell off his truck). Trim the stump, pull off the lower leaves until you get to the big ones, cut off the top so you can see the "choke". If you can see stickers above the choke, dig them out, snip off any spines from the leaves with scissors, give them a good wash and put them in a big pot and boil them until the heart can be pierced and the leaves pull off easily. Make your favorite dipping sauce, get a plate for discards and dig in.