From one peer to another, my message is this: learn to use cleanly, to filter out bacteria and to plan. It’s no good telling yourself you’ll never use again — then ending up in the same space because you do it without having all the equipment you need at hand. Get the knowledge, get the equipment. If you don’t ever do it again, great, but if you do…. well at least you won’t end up in a hospital for months in serious pain — or in a wheelchair.