Macaulay Culkin hates being "touched" by fans and has set "rules" to keep himself "safe".

The Home Alone star, 45, has been dealing with fame for most of his life since shooting to fame as a child actor back in the 1990s and he admits he's learned how to excuse himself from uncomfortable situations and how to handle fans when they're "overly excited" to meet him.

He told Deadline: "I learned a bunch of tricks over the years. Okay, let's say somebody's talking to me and it becomes clear they want something from me that I don't want to give. I can see where this is headed.

"I just go: 'Hey, nice to meet you'. And then start walking away before they even realize, the interaction's already over with. I could just end the social contact. Those tools became helpful in getting me through. Now that I'm older, it's easier for me to kind of diffuse things ...

"I still get some people that are overly excited ... And there's certain times I'm like, okay, slow down cowboy ...

"Also, I have a firmer hand with myself and with others and can say: 'I'm done with that', or 'What you're doing is inappropriate'. A lot of it is about the feeling of safety. You got to feel safe ... "

He went on to add: "I set up rules for myself. Don't follow me to the bathroom. I hate that. Don't do that. Don't do that stuff in front of my kids. Just don't do that.

"I'll tell them, this is inappropriate. Do you know where we are? There's ways to do this. I don't like being touched, handled. People will try to handle me.

"I don't like being handled. Things like that. I'll let them know like: 'Hey, whoa'. Because some people don't realize it ...

"I know you're getting caught up in the moment. I'll give you the benefit of the doubt, but at the same time, I have rules."

It comes after Macaulay opened up about how he shields his kids from the celebrity lifestyle.

The actor is father to two sons with his actress partner Brenda Song and he's revealed he is "not intending to raise a nepo baby" and he's glad the boys are "thoroughly unimpressed" when they see their mom and dad on TV.

During an appearance on the Hot Ones YouTube show, Macaulay explained: "My kids have no idea that me and Brenda are famous. "They see momma on TV because when she's not around I put on [her TV show] Suite Life [The Suite Life of Zack and Cody].

"Just saying. I say oh yeah, no I showed them some Suite Life and you know what [my son] Dak said. "He goes: 'Someday I want to grow up and marry a girl just as pretty as [Brenda's character] London Tipton'. I'm like: 'Yeah yeah, yep yep'.

"But they are thoroughly unimpressed that we're on TV and stuff like that. I don't want them to get mired by all that kind of stuff."

He added: "I'm not intending to raise a nepo baby no matter how much they're going to be like them, you know?"