If you've had former addictions, do they sometimes come back to sneak up on you?

The addiction can be anything, from something strictly physical to something almost just mental. Addictions come in various shapes and do different things to people in different ways, and this question does not exclude any addiction at all.
Smoking, drugs, gambling, drinking, the internet, whatever habit one may have that has turned into a problem, which effects their daily life in a shitty way. Addictions are different and do different things, but the definition itself may encompass at least one thing out of all addictions; they can mess up your life.

So I’m wondering, for people who have had addictions in the past and have beaten them. Do you sometimes get things like cravings? Like even if you stopped smoking ten years ago, do you sometimes randomly feel like you need a cigarette? If you were a drinker, do you sometimes go, man, I could go for a drink right now, and not in the good way. If you were a gambler, do you sometimes miss the rush and thrill? If you had a drug problem, do you get relapses? Either by desire, or physical need?
I have cigarettes as an addiction, and drinking was a big problem for me, and I have to admit I haven’t got rid of it completely. In fact it’s probably a nuclear explosion just waiting to happen. XD

Addictions are complicated because of how they can vary, and what they can do to someone. Are they mental, physical? How much does withdrawal and relapse play into them? Have you any experiences or thoughts to share about former addictions you may have had, or are currently fighting? How do they sneak up on you, and what happens? How do you deal with it? How long in between when you stopped the addiction, and its potential resurfacing? How is it resurfacing? Or is it not?