cat on a leash

Recently, Tommy bought Atticus a leash and harness so we can take him outside to explore the backyard. Yes, we are those people. So far the outdoors has a paralyzing effect on him; he doesn't really care for all the noises,  and he stays off the grass as much as possible (the grass is lava!) by staying on a blanket or a cinder block. Cats are pretty hilarious. Have you ever taken your inside kitty outside? Did he love it or hate it?